7. Governors Island is made from Rubble Excavated from Lexington Ave Subway Construction
Similar to many parts of Manhattan, Governors Island is mainly comprised of landfill. In 1912, the island was expanded by the rubble from the construction of the 4/5/6 subway lines. This Lexington Avenue landfill, roughly 182,000 cubic yards of fill, created the ice cream cone shape of the island. As reported by Architizer, there’s enough landfill in Governors Island to fill approximately 1,100 subway cars that could stretch from the northern tip of Manhattan to Battery Park.