Most dangerous walkway in the world - Hua Shan, China.
Edge of the Cliff, El Caminito del Rey, Spain/Don't look down
Elephant Rock in New Zealand (Duntroon, Otago)
Machu Pichu, Zuid-Amerika
Nemrut or Nemrud is a 2,134 m high mountain in southeastern Turkey, notable for the summit where a number of large statues are erected around what is assumed to be a royal tomb from the 1st century BC.
To step out on to the Ledge at the Sears Tower, Chicago.