1. A Building on 23rd Street One Stored All the Uranium Used for The Manhattan Project
The Manhattan Project, or the top secret codename applied to the United States’ research into nuclear fission and the creation of the world’s first atomic bombs, was named the Manhattan Project, shockingly, because most of its research took place in Manhattan. The Baker and Williams Warehouses on West 20th Street served as the storage units for a significant amount of the projects’ uranium stores. Uranium, which can be even more lethal in dust form than it already is as a metallic solid, was not moved much throughout the entire process for safety. The uranium was finally moved form the warehouse in — get this — the 90s.