Did you know this New York City subway station is nearly 14 stories underground, and almost became a bomb shelter? Welcome to the 190th Street subway station, one of the deepest stations in the entire NYC subway system, sitting nearly 140 feet below the surface. Built in 1932, engineers had to blast through Manhattan schist, one of the hardest types of bedrock in the city, because this entire neighborhood sits on a massive rocky ridge. Its depth was so extreme that during the Cold War, officials