Whats the most spectacular natural phenomena / landscape you have seen?

Question

the northern lights, the midnight sun or a really spectacular natural landscape, whats taken your breath away, astonised or amazed you ?

Answer 1

The Grand Canyon at sunrise (or sunset).  An awesome sight to behold.

Answer 2

The Kimberlies (especially the Bungle Bungles), the Tasmanian Wilderness, Fraser Island (biggest sand island in the world), the Great Barrier Reef, Uluru (Ayres Rock), the Canadian Rockies, the Swiss Alps,  the Grand Canyon, Niagara Falls and Petra/Wadi Rum in Jordan.

Answer 3

Niagara Falls, Ontario,Canada..it is a man made wonder of the world . The Canadian side is spectacular!!!!!!!!!!!!

Answer 4

when I went to Indonesia ,the vulcanos was just spectacular!