4 World Trade Center in the context of "World Trade Center (2001–present)"

The original 4 World Trade Center (4 WTC), also known as the Southeast Plaza Building, was a nine-story, 118 ft (36 m)-tall building at the southeast corner of the World Trade Center complex in Lower Manhattan, New York City. Completed in 1975, the building was designed by Minoru Yamasaki and Emery Roth & Sons. On September 11, 2001, the building was heavily damaged as a result of attacks carried out by the Islamic terrorist group al-Qaeda, and was later demolished. Its site is now the location of 3 World Trade Center and the new 4 World Trade Center.

The Port Authority of New York and New Jersey, (PANYNJ; stylized, in logo since 2020, as Port Authority NY NJ) is a joint venture between the U.S. states of New York and New Jersey, established in 1921 through an interstate compact authorized by the United States Congress. The Port Authority oversees much of the regional transportation infrastructure, including bridges, tunnels, airports, and seaports, within the geographical jurisdiction of the Port of New York and New Jersey. This 1,500-square-mile (3,900 km) port district is generally encompassed within a 25-mile (40 km) radius of the Statue of Liberty National Monument. The Port Authority is headquartered at 4 World Trade Center in Lower Manhattan.

The Port Authority operates the Port Newark–Elizabeth Marine Terminal, which consistently ranks among the largest ports in the United States by tonnage handled, and the largest on the Eastern Seaboard. The Port Authority also operates six bi-state crossings: three connecting New Jersey with Manhattan, and three connecting New Jersey with Staten Island. The Port Authority Bus Terminal and the PATH rail system are also run by the Port Authority, as well as LaGuardia Airport, John F. Kennedy International Airport, Newark Liberty International Airport, Teterboro Airport, and Stewart International Airport. The agency has its own 2,100 member Port Authority Police Department.