Visit St. Paul's Chapel, NYC's oldest active public building, miraculously surviving the nearby World Trade Center's debris,Explore Ground Zero or the National 9/11 Memorial dedicated to the victims of the World Trade Center attack,Listen to gripping accounts of the plane hijacking and the World Trade Center crash from the knowledgeable tour guide,Opt for skip-the-line access to the 9/11 Museum to deepen your understanding of the events of 9/11