What is the name of a spectacular group of six canyons in the Sierra Madre Occidental in the southwestern part of Chihuahua, northwestern Mexico, a name derived from the colour of the walls?
Copper Canyon The walls are copper green in colour. The canyon group reaches depths of 1,400 m (4,600 ft).
"The Treasure of the Sierra Madre" (1927), on which the multi-award winning 1948 American film was based, was written under the pen-name B. Traven by someone understood to be of what nationality?
The famous "The Great Wave" painted by which artist and is part of his series of thirty-six paintings on what subject?
Where is a complex of caves in southwestern France famous for its Paleolithic cave paintings consisting primarily of realistic images of large animals?
Where is the Cotahausi Canyon, one of the deepest canyons in the world and over twice as deep, at its deepest point, as the Grand Canyon in Arizona, USA?
