Kevin Lamarque / Reuters
U.S. President Barack Obama and first lady Michelle Obama look down at the 9/11 Memorial while touring the One World Trade Center building which is under construction in New York on June 14.
Jewel Samad / AFP - Getty Images
Barack Obama signs a steel beam as First Lady Michelle Obama, New York governor Andrew Cuomo, New Jersey governor Chris Christie and New York Mayor Michael Bloomberg look on at the One World Trade Center site in New York on June 14.
Justin Lane / EPA
Iron workers take pictures of the signatures of President Barack Obama and First Lady Michele Obama after a ceremony where they signed a steel beam that will be used to top off the One World Trade Center in New York.
Justin Lane / EPA
A view of President Barack Obama's signature on a steel beam that will be used to top of One World Trade Center.
President Barack Obama and First Lady Michelle Obama visited Ground Zero in New York City to review the construction of the iconic 104-story skyscraper that replaces the World Trade center towers destroyed on Sept. 11, 2001.
The Obamas toured the 22nd floor of One World Trade Center and also signed their names on a steel beam that will be added to the tower's construction with the message, "We remember, we rebuild, we come back stronger!"
During his trip to New York, the president will also be attending campaign fundraisers at the home of Sarah Jessica Parker and Matthew Broderick, and at the Plaza Hotel.
Spencer Platt / Getty Images
People stand on posts while waiting for the Presidential motorcade to pass on June 14 in New York City. President Obama came to New York Thursday for a briefing on the progress of the iconic 104-story tower that replaces the World Trade center towers destroyed on 9/11.