4 World Trade Center, Modern skyscraper in Lower Manhattan, United States.
4 World Trade Center is a 297-metre glass-clad skyscraper at 150 Greenwich Street, on the southeast corner of the World Trade Center site in Lower Manhattan. Above 217 metres the angular tower narrows toward a flat roof, and its facade is a grid of blue glass panes reflecting neighbouring buildings. It has 72 above-ground floors over a concrete core, with retail space in the lower levels.
The current tower replaced a shorter predecessor from 1975 that was destroyed in September 2001. The old structure had reached only 36 meters in height and housed commodities exchanges.
The tower takes its name from its position within the World Trade Center complex and now functions primarily as an office hub for administration and transportation. The Port Authority maintains its headquarters here and coordinates regional transit operations from this location.
The tower holds numerous elevators, office floors, and retail areas on the lower levels. Visitors can orient themselves in the lobby, which is publicly accessible.
The original 4 World Trade Center, demolished after the September 11 attacks, held 30.2 million ounces of silver coins and 379,036 ounces of gold coins in its basement, worth an estimated $200 million. Trucks removed much of the hoard by November 2001 through an abandoned section of the Downtown Hudson Tubes.
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