Port Authority Trans-Hudson
Other major projects include the renovation of, and addition to, the headquarters of the United Nations, completed in 2014, the restoration of the World Trade Center site including the removal of debris, the reconstruction of the Port Authority Trans-Hudson and New York City Subway tunnels, and the creation of a World Trade Center Transportation Hub, completed in 2015 (including the "Oculus" station entrance designed by Santiago Calatrava), the Second Avenue Subway tunneling project completed in 2016 and Moynihan Train Hall completed in 2020.