Date palm grove in the oasis of AlUla, Medina Province, Saudi Arabia

Aerial view of the Site of Hegra (Madain Salih), UNESCO, in the area of AlUla, Medina Province, Saudi Arabia

Tigui, Tibesti Mountains, Chad

Overflooded area after rainfall in the Tibesti Mountains, Chad

Adult beachmaster bull southern elephant seal (Mirounga leonina) challenging another male at Gold Harbour, South Georgia, Polar Regions

Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

Cueva de las Manos del Rio Pinturas, Cave of the Hands, Patagonia, Province of Santa Cruz, Argentina

Last light on mesas, West Mitten Butte, East Mitten Butte, Merrick Butte, Scenic Drive, sunset, dusk, Monument Valley, Navajo Tribal Park, Navajo Nation Reservation, Arizona, Utah, United States of America, USA