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 30,000 square feet of unused railway tunnels.
Tepuis in Venezuela are the real "islands in the sky, because their height—typically 5,000 to 10,000 feet (1,500 to 3,000 meters)—effectively cuts them off from the surrounding rain forest. That means they host unique habitats and unique creatures.
One of the seven wonders of the world - Petra, Jordan