7 World Trade Center, New York

S1 E3: Skyscrapers have transformed cities across the globe, most notably the famous skyline of Manhattan, but on September 11th, 2001, this historic cityscape became forever linked with one event that forced architects to rethink how skyscrapers should be built. 7 World Trade Center, the first building to be constructed on Ground Zero, has taken skyscraper safety innovation to new levels.