Ten minutes later the view from the helicopter door changes dramatically.

BBC: Afghanistan: Landing in the camp

Trainees see and hear the virtual world from their own point of view, whether peering out from behind a wall or approaching the scene in a helicopter.

ECONOMIST: Monitor

National Parks on both sides of the border and falls are UNESCO World Heritage Sites, and between them, boast a wide assortment of falls view hotels, hiking trails, walkways, sightseeing buses, an eco-railway and even helicopter rides.

FORBES: Awesome Nature: Iguacu Falls, South America