Nob Hill Underground Hive [London´s Old Vic Tunnels Space. The Old Vic Tunnels Space was an underground arts venue and performance space beneath Waterloo train station in London. The space consisted of almost square feet of unused railway tunnels.
Tepuis in Venezuela are the real "islands in the sky, because their height—typically to feet to meters)—effectively cuts them off from the surrounding rain forest. That means they host unique habitats and unique creatures.