While brainstorming on the subject of ‘high-end’ high jinx, the cryptotopographers here at n0t.nu stumbled upon these subterranean caverns. Many of the labyrinthine alleys were hallowed out by the Bloomingdale’s Insane Asylum that existed before Columbia’s Morningside campus was built at the turn of the century. But the tunnels are better known for birthing the Manhattan Project in 1939, when John R. Dunning (not to be confused with the famed Snooker player of the same name) used a radioactive cyclotron to split an atom for the first time. Notice the “Red-hot pipes, 6 inches clearance” label near the center of the map—just seems too good. Someone please spelunk this… before we beat you to it.