The Empire State Building and Manhattan buildings are viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Manhattan is viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Manhattan is viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
A custodial worker cleans the floor at dawn at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Buildings in Manhattan are viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
People view the sunrise at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
A custodial worker cleans the floor at dawn at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Sun rises outside of the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Sun rises outside of the newly built One World Observatory is viewed at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
A ferry moves along the Hudson River as viewed from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
The Empire State Building and Manhattan buildings are viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
A custodial worker cleans the floor at dawn at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
People view the sunrise at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Custodial worker Alex Peralta cleans the floor at dawn at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
A ferry moves along the Hudson River with the New Jersey coast in view from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
The Empire State Building and Manhattan buildings are viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Custodial worker Alex Peralta pauses while making last minute preparations at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
A ferry moves along the Hudson River as viewed from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Custodial worker Alex Peralta pauses while making last minute preparations at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Manhattan and Brooklyn are viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Buildings in Manhattan are viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
People view the sunrise at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
A custodial worker cleans the floor at dawn at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
A custodial worker cleans the floor at dawn at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Manhattan is viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Manhattan is viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
People view the sunrise at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
A custodial worker cleans the floor at dawn at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
People view the sunrise at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Manhattan is viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
People view the sunrise at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
A ferry moves along the Hudson River as viewed from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Merchandise is displayed at sunrise in a store at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
The Statue of Liberty is viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
People view the sunrise at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
The Statue of Liberty is viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Custodial worker Alex Peralta pauses while making last minute preparations at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Manhattan is viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
Workers make last minute preparations at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
NEW YORK, NY - MAY 29: The sun rises over Manhattan and Brooklyn while viewed from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
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Legends Hosts Celebration For One World Observatory On Eve Of Official Public Opening - Inside
NEW YORK, NY - MAY 28: The view from One World Observator at the Legends-hosted celebration for the opening of One World Observatory on May 28, 2015 in New York City. (Photo by Jamie McCarthy/Getty Images for One World Observatory)
One World Trade's Observatory Floor To Open Next Week
NEW YORK, NY - MAY 22: The view of Manhattan from the newly built One World Observatory at One World Trade Center on May 22, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers, opening to the public on May 29th with tickets currently being sold online. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
NEW YORK, NY - MAY 29: The empire state building and Manhattan buildings are viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
NEW YORK, NY - MAY 29: Manhattan and Brooklyn are viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
NEW YORK, NY - MAY 29: Custodial worker Alex Peralta cleans the floor at dawn at the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
One World Trade Center's Observatory Tower Opens To Public
NEW YORK, NY - MAY 29: Buildings in Manhattan are viewed at dawn from the newly built One World Observatory at One World Trade Center on the day it opens to the public on May 29, 2015 in New York City. The observation deck sits atop the 104-story skyscraper at the former site of the Twin Towers and is expected to become one of Manhattan's top tourist attractions. (Photo by Spencer Platt/Getty Images)
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