A Man in a Room - Rembrandt, 1630.
Antelope Canyon is one of the most striking slot canyons known to man. A slot canyon is a narrow canyon sliced through a mesa by the forces of nature. Some canyons measure less than a yard across at the top, but drop a hundred feet or more from the rim to the bottom. Slots are cut and scoured by water and wind, with the striations of the sandstone becoming almost incandescent.
One Way Colour Tunnel by Olafur Eliasson Multi-coloured one way and clear the other
Poland's Mysterious Crooked Forest: In a tiny corner of western Poland a forest of about 400 pine trees grow with a 90 degree bend at the base of their trunks - all bent northward. Surrounded by a larger forest of straight growing pine trees this collection of curved trees, or "Crooked Forest," is a mystery.
Yellowstone National Park The distinct color of the pool is due to bacteria which inhabit the water. On a few rare occasions the Morning Glory Pool has erupted as a geyser, usually following an earthquake or other nearby seismic activity. Several entryways have been clogged due to objects being thrown in by tourists, reducing the hot water supply, and in turn altering the overall appearance of the pool.
Morning Glory Rainbow Pool @Yellow Stone National Park.