New York is a truly unique city — famous not only for its spectacular skyline above ground, but also for its mysterious underground world: a one-of-a-kind subway system (hello, Ninja Turtles!), tunnels, caves, and… catacombs! Unlike the subway, the catacombs are not filled with life — but your blood might start to race when you … Continue reading New York’s Hidden World: The Catacombs Beneath St. Patrick’s Old Cathedral