Visitors on the sandstone causeway exit from the famous Angkor Wat temple complex, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Tilted layers showing bedding planes in strata of sedimentary rock in coastal cliff at Odeceixe, Algarve, Portugal, Europe

Sandstone formations, Capitol Reef National Park, Utah, United States of America, North America

Rock fin, Carson National Forest, New Mexico, United States of America, North America

T wo of 216 smiling sandstone faces at 12th century Bayon, King Jayavarman VII's last temple in Angkor Thom, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

The 9th century Mukteswara Temple dedicated to the Hindu deity Shiva in Bhubaneswar, nicknamed the City of Temples, Bhubaneswar, Odisha, India, Asia

Towers and three of the 216 smiling sandstone faces at 12th century Bayon temple in Angkor Thom walled city, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Mushroom shaped sandstone spire on an eroded ridge west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Pre Rup Temple, a Hindu temple at Angkor built in 961 for Khmer king Rajendravarman of laterite and sandstone, UNESCO World Heritage Site, Cambodia, Indochina, Southeast Asia, Asia

Pre Rup Temple, a Hindu temple at Angkor built in 961 for Khmer king Rajendravarman of laterite and sandstone, UNESCO World Heritage Site, Cambodia, Indochina, Southeast Asia, Asia

Goblin Garden west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Tower with two of the 216 smiling sandstone faces at 12th century Bayon temple in Angkor Thom walled city, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Bas Relief of Hieroglyphics with Statues, Karnak Temple Complex, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa

Pre Rup Temple, a Hindu temple at Angkor built in 961 for Khmer king Rajendravarman of laterite and sandstone, UNESCO World Heritage Site, Cambodia, Indochina, Southeast Asia, Asia

Goblin Garden west of Hamilili Point in Petrified Forest National Park, Arizona, United States of America, North America

Two of 216 smiling sandstone faces at 12th century Bayon, King Jayavarman VII's last temple in Angkor Thom, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Folded sedimentary rocks in cliffs at Welcombe Mouth, on the Atlantic coast; Hartland, north Devon, England, United Kingdom, Europe

A dry waterfall on the west side of Hamilili Point, Hamilili being a Zuni word for petrified wood, next to a hoodoo on the south end of Petrified Forest National Park, Arizona, United States of America, North America

Seated Pharaohs, Pylon 8, Karnak Temple Complex, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa

One of 216 smiling sandstone faces at 12th century Bayon, King Jayavarman VII's last temple in Angkor Thom, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

One of 216 smiling sandstone faces at 12th century Bayon, King Jayavarman VII's last temple in Angkor Thom, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

The North Valley below the Blue Mesa in Petrified Forest National Park, Arizona, United States of America, North America

Gopura entrance and weathered carved sandstone walls in the 12th century Preah Khan (Prah Khan) Buddhist temple complex, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Statues of Rameses III as Osiris, Temple of Rameses III, Karnak Temple Complex, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa

View of Sedona from the north side of Cathedral Rock, Sedona, Arizona, United States of America, North America

Statues of Thutmose III, Pylon 7, Karnak Temple Complex, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa

Relief of Thutmose III, Karnak Temple Complex, UNESCO World Heritage Site, Luxor, Egypt, North Africa, Africa

Standing devata (female deity) in a carved sandstone tympanum at the 12th century Ta Som temple, Ta Som, Angkor, UNESCO World Heritage Site, Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Weathered sandstone cliffs and sea stacks at Ponta da Piedade in morning light with a yacht framed by a rock arch, Lagos, Algarve, Portugal, Europe

Vegetation grows roots in cracks of Mereenie sandstone at King's Canyon, Red Centre, Australia

Cracked Mereenie sandstone at King's Canyon, Northern Territory, Australia

Ripple marks preserved in the Mereenie sandstone at King's Canyon, Northern Territory, Australia

Tourists visit King's Canyon, Northern Territory, Australia

Tourists on the rim of King's Canyon, Red Centre, Northern Territory, Australia

Trees at King's Canyon, Northern Territory, Australia

Sandstone domes at King's Canyon, Northern Territory, Red Centre, Australia

Tourists on the rim of King's Canyon, Red Centre, Northern Territory, Australia

Multi-coloured layers of Mereenie sandstone at King's Canyon, Northern Territory, Australia

Sandstone domes in shape of beehives at King's Canyon, Red Centre, Australia

King's Canyon, Northern Territory, Australia

Ocre pits, West Macdonnell Mountain Range, Northern Territory, Australia

Tree at King's Canyon, Northern Territory, Australia

Weathered sandstone cliffs and sea stacks at Praia Dona Ana, Lagos, Algarve, Portugal, Europe

Weathered, layered sandstone cliffs at Praia do Mos, Lagos, Algarve, Portugal, Europe

Weathered sandstone rocks and natural archway at Ponta da Piedade at low tide, Lagos, Algarve, Portugal, Europe

Weathered sandstone cliffs and sea stacks at Ponta da Piedade, Lagos, Algarve, Portugal, Europe

Geology, usa. Arizona, paria canyon vermillion cliffs wilderness. North coyote buttes: the swirl. Made from navaho sandstone, formed by wind and weather

Am Buachaille sea stack on the coast south of Sandwood Bay, Sutherland, Scotland, United Kingdom, Europe

Am Buachaille sea stack on the coast south of Sandwood Bay, Sutherland, Scotland, United Kingdom, Europe

Am Buachaille sea stack on the coast south of Sandwood Bay, Sutherland, Scotland, United Kingdom, Europe

A climber on Stac Pollaidh in Assynt, Sutherland, Scotland, United Kingdom, Europe

Ben Mhor Coigach from Stac Pollaidh in Assynt, Sutherland, Scotland, United Kingdom, Europe

Am Buachaille sea stack on the coast south of Sandwood Bay, Sutherland, Scotland, United Kingdom, Europe

Sandstone pebbles, Aberdeenshire, Scotland

The Vermillion Cliff, sandstone formations in the sunlight, Coyote Buttes, Arizona, North America, Amerca

The Vermillion Cliff, sandstone formations in the sunlight, Coyote Buttes, Arizona, North America, Amerca

The Vermillion Cliff, sandstone formations in the sunlight, Coyote Buttes, Arizona, North America, Amerca

The Vermillion Cliff, sandstone formations in the sunlight, Coyote Buttes, Arizona, North America, Amerca

The Vermillion Cliff, sandstone formations in the sunlight, Coyote Buttes, Arizona, North America, Amerca

The Vermillion Cliff, sandstone formations in the sunlight, Coyote Buttes, Arizona, North America, Amerca

The Vermillion Cliff, sandstone formations in the sunlight, Coyote Buttes, Arizona, North America, Amerca

The Vermillion Cliff, sandstone formations in the sunlight, Coyote Buttes, Arizona, North America, Amerca

The Vermillion Cliff, sandstone formations in the sunlight, Coyote Buttes, Arizona, North America, Amerca

Woman looking over the Glen Canyon National Recreation Area from the Hite viewpoint, Colorado Plateau, Utah, USA

Praia Ponta da Piedade near Lagos, Algarve, Portugal

Praia dos tres Irmaos near Alvor, Algarve, Portugal

View from the Hite lookout point over the Glen Canyon National Recreation Area , Colorado Plateau, Utah, USA

Praia dos tres Irmaos near Alvor, Algarve, Portugal

Rock wall, Uluru, Ayers Rock, Uluru-Kata Tjuta National Park, Northern Territory, Australia

Hiker in the Bryce Canyon, Utah, USA

Delicate Arch, Arches National Park, Moab, Utah, USA

Mesa Arch in the break of dawn, Canyonlands National Park, Utah, USA

Mesa Arch in the break of dawn, Canyonlands National Park, Utah, USA

Weathered Sandstone Formations, Red Deer River Valley Near Drumheller, Alberta, Canada

AUSTRALIA Northern Territory Uluru Kata Tjuta National Park Mount Uluru Ayers Rock. Branch of tree in foreground. Travel Tourism Holiday Vacation Explore Recreation Leisure Sightseeing Tourist Attraction Tour Mount Uluru Ayers Ayres Rock Kata Tjuta National Park Northern Territory Territories NT Australia Australian Australasia Australasian Summer Bright Sunny Sun Tranquility Tranquil Peaceful Rural Oz Vacation Famous Distant Distance Rocky Outcrop Mountain Range Landscape Landmark Desert Outback Erosion Sandstone Tropical Monolith Geology Geological Formation Weathering Weathered Natural Nature Aborigine Aboriginal Barren Arid Monument Spectacular Impressive Isolated Wilderness Scenic Vast Sacred Spiritual Symbolic Anangu Huge Flat Gigantic Dominant Prominent Sand Tree Branch UNESCO World Heritage Site Antipodean Aussie Oceania

AUSTRALIA Northern Territory Uluru Kata Tjuta National Park Mount Uluru Ayers Rock. Branch of tree in foreground. Travel Tourism Holiday Vacation Explore Recreation Leisure Sightseeing Tourist Attraction Tour Mount Uluru Ayers Ayres Rock Kata Tjuta National Park Northern Territory Territories NT Australia Australian Australasia Australasian Summer Bright Sunny Sun Dawn Sunrise Tranquility Tranquil Peaceful Rural Oz Vacation Famous Distant Distance Rocky Outcrop Mountain Range Landscape Landmark Desert Outback Erosion Sandstone Tropical Monolith Geology Geological Formation Weathering Weathered Natural Nature Aborigine Aboriginal Barren Arid Monument Spectacular Impressive Isolated Wilderness Scenic Vast Sacred Spiritual Symbolic Anangu Huge Flat Gigantic Dominant Prominent Shadow UNESCO World Heritage Site Antipodean Aussie Oceania