Tourists climbing Nohoch Mul (big mound), Coba, Quintana Roo, Mexico, North America

Tourists climbing the stairway, Nohoch Mul (Big Mound), Coba, Quintana Roo, Mexico, North America

Aerial of the huge granite hills, Cerros de Mavecure, Eastern Colombia

Large black dog is resting among the red hills. The rock Mittens. USA. Navajo Indian Reservations. Monument Valley is geological formation in Arizona and Utah. The bright rainbow

A male hiker celebrating the climb to the top of Mount Adarra in Urnieta. Gipuzkoa, Basque Country

Beautiful landscape at the top of Mount Adarra in Urnieta. Gipuzkoa, Basque Country

A Cheetah (Acinonyx jubatus) on a termite mound in the sun, Africat Foundation, Namibia, Africa

A pack of wild dog, Lycaon pictus, lie outside their den in a termite mound and under a big tree, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa

A pack of wild dog, Lycaon pictus, lie outside their den in a termite mound and under a big tree, Londolozi Game Reserve, Sabi Sands, Greater Kruger National Park, South Africa