Thamudic inscriptions carved 2000 years ago by Arabian tribe of camel caravan on Jebal Umm Ishrin, Wadi Rum, Jordan, Middle East

Mnajdra Temple, on the island of Malta

Rock art on a rock formation in Tigui, Tibesti Mountains, Chad

Wandjina art form of hands found in quartzite sandstone cliffs on Bigge Island, Kimberley, Western Australia, Australia, Pacific

Elephant, primitive rock carving, Akakus, Sahara desert, Fezzan, Libya, North Africa, Africa

Egyptian man standing guard in King Seti's tomb in the Valley of the Kings, Luxor, Egypt

Inscriptions on a column in the Great Hypostyle Hall in Karnak Temple, Cairo, Egypt

Wall mural depicting the troubles in Ireland, Ennistymon also known as Ennistimon, County Clare, West of Ireland

Local woman in a windows next to of a wall panting in San Juan La Laguna, Solol√°, Guatemala. Traditional mayan painting art Santiago Atitlan, lake Atitlan, Guatemala.

Local man walking in front of a wall panting in San Juan La Laguna, Solol√°, Guatemala. Traditional mayan painting art Santiago Atitlan, lake Atitlan, Guatemala.

Two girs walking in front of a wall panting in San Juan La Laguna, Solol√°, Guatemala. Traditional mayan painting art Santiago Atitlan, lake Atitlan, Guatemala.

Boys of Ari tribe walking on stilts, Omo Valley, Ethiopia, Africa

Popular painting, children playing in the snow

Tuareg script (Tifinagh) on stone, rock carvings, Youf Ahakit, Tassili du Hoggar, Wilaya Tamanrasset, Algeria, Sahara, North Africa

Early Islamic rock carvings, Youf Ahakit, Tassili du Hoggar, Wilaya Tamanrasset, Algeria, Sahara, North Africa

Prehistoric rock carving, bull, La Dalle, Tin Tarabine, Tassili du Hoggar, Wilaya Tamanrasset, Algeria, Sahara, North Africa

Aboriginal rock etching, waterhole symbol at Uluru, Uluru National Park, Northern Territory, Australia

Inukshuk on the Tundra, near Cambridge Bay

Vietnam, Tourist Goods, Painting of Vietnamese woman carrying goods in baskets on pole across her shoulders.

USA, Utah and Colorado, Dinosaur National Monument, Petroglyphs, USA, Utah and Colorado

USA, Utah and Colorado, Dinosaur National Monument, Petroglyphs, USA, Utah and Colorado