Weathered coastal defences at Porlock Weir in Exmoor National Park, with the evening lights of Wales visible across the Bristol Channel, Somerset, England, United Kingdom, Europe

Weathered wooden groyne on Porlock Beach, Exmoor National Park, Somerset, England, United Kingdom, Europe

Old gold mine buildings, Rodalquilar, Cabo de Gata natural park, Almeria, Andalusia, Spain, Europe

Aqueduct bridge, canyon, Gravina, Bari, Alta Murgia, Apulia, Italy

Giant's Causeway, UNESCO World Heritage Site, Bushmills, County Antrim, on the north coast of Northern Ireland, Ulster, Northern Ireland, United Kingdom, Europe

Historical meteorological station Sedov in Tikhaya Bay on Hooker island, Franz Josef Land archipelago, Arkhangelsk Oblast, Arctic, Russia, Europe

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

Ruins of pre-Spanish Mahos village, Poblado de la Atalayita, Pozo Negro, Fuerteventura, Canary Islands, Spain, Atlantic, Europe

Stone staircase in the rock palace at Sigiriya, UNESCO World Heritage Site, Central Province, Sri Lanka, Asia

Moeraki Boulder, Koekohe Beach, Moeraki Penninsula, Otago, South Island, New Zealand, Pacific

Ancient fireplace stones, site of a 12th century camp of Ghengis Khan and his troops, Altyn-Emel National Park, Almaty region, Kazakhstan, Central Asia, Asia

Large rusted anchor from a shipwreck on rocky seashore, Devon, England, United Kingdom, Europe

Ruins of pre-Spanish Mahos village, Poblado de la Atalayita, Pozo Negro, Fuerteventura, Canary Islands, Spain, Atlantic, Europe

Polar huskies boxes in the historical meteorological station Sedov in Tikhaya Bay on Hooker island, Franz Josef Land archipelago, Arkhangelsk Oblast, Arctic, Russia, Europe

Scorhill megalithic stone circle in Dartmoor National Park, Devon, England, United Kingdom, Europe

Scorhill megalithic stone circle in Dartmoor National Park, Devon, England, United Kingdom, Europe

Iguana sculpture, Punta Sur, Isla Mujeres, Caribbean Coast, Cancun, Quintana Roo, Mexico, North America

Weathered rock formations, the Olgas, near Ayer's Rock, Northern Territory, Australia

Prehistoric archaeological Karer site of Zorats, Sisian, Syunik Province, Armenia, Caucasus, Asia

Weathered rock pools, Andringitra National Park, Ambalavao, central area, Madagascar, Africa

Prehistoric archaeological Karer site of Zorats, Sisian, Syunik Province, Armenia, Caucasus, Asia

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

Temple E (Temple of Hera) (Heraion), Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

Temple R, Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

West Kirby Marine Lake, Wirral, Cheshire, England, United Kingdom, Europe

Temple E (Temple of Hera) (Heraion), Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

Autumn at the Falls of Bruar, Perthshire, Scotland, United Kingdom, Europe

Temple E (Temple of Hera) (Heraion), Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

The Church of the Madonna del Parto, Sutri, Lazio, Italy, Europe

Old whaling station Amsterdamoya (Amsterdam island), Svalbard Archipelago, Norway, Arctic, Scandinavia, Europe

Prehistoric archaeological Karer site of Zorats, Sisian, Syunik Province, Armenia, Caucasus, Asia

Temple E (Temple of Hera) (Heraion), Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

Temple E (Temple of Hera) (Heraion), Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

Temple of Hercules, Valley of the Temples, UNESCO World Heritage Site, Agrigento, Sicily, Italy, Europe

The Church of the Madonna del Parto, Sutri, Lazio, Italy, Europe

Temple R, Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

Temple R, Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

The Church of the Madonna del Parto, Sutri, Lazio, Italy, Europe

Temple of Apollo, Ortigia, Siracusa, Sicily, Italy, Europe

Temple R, Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

Temple of Hercules, Valley of the Temples, UNESCO World Heritage Site, Agrigento, Sicily, Italy, Europe

Temple of the Dioscuri, Valley of the Temples, UNESCO World Heritage Site, Agrigento, Sicily, Italy, Europe

Temple of the Dioscuri, Valley of the Temples, UNESCO World Heritage Site, Agrigento, Sicily, Italy, Europe

Temple of the Dioscuri, Valley of the Temples, UNESCO World Heritage Site, Agrigento, Sicily, Italy, Europe

Temple R, Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

Temple of the Dioscuri, Valley of the Temples, UNESCO World Heritage Site, Agrigento, Sicily, Italy, Europe

Temple E (Temple of Hera) (Heraion), Selinunte, Castelvetrano, Trapani, Sicily, Italy, Europe

Temple of Hercules, Valley of the Temples, UNESCO World Heritage Site, Agrigento, Sicily, Italy, Europe

Monks' cells cut into the hillside rock among the Udayagiri and Khandagiri caves dating back to over 100 years BCE sculpted as religious retreats for Jain devotees, Bhubaneswar, Odisha, India, 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

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

Pieces of petrified wood on hills overlooking Dead Wash, Petrified Forest National Park, Arizona, United States of America

Sandstone rock formations in the desert canyons of the Ashar Valley, Medina Province, Saudi Arabia

A lone weathered tree in amongst the limestone pavement of the Yorkshire Dales National Park, Yorkshire, England, United Kingdom, Europe

Mani-stone and mani-wall, Solukhumbu, Nepal, Himalayas, Asia

Grjotagja cave near Lake Myvatn in Iceland, Europe

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

Paphos Castle, Paphos, Cyprus, Mediterranean, Europe

Milky Way over Salar de Tara y Aguas Calientes I, Los Flamencos National Reserve, Antofagasta Region, Chile, South America

Porous sand stone rocks on Jalandhar Beach near the south pole point in Diu, India, Asia

Monks' cells cut into the hillside rock among the Udayagiri and Khandagiri caves dating back to over 100 years BCE sculpted as religious retreats for Jain devotees, Bhubaneswar, Odisha, India, Asia

Towering red rock formations in the Warton Sandstone, King George River, Kimberley, Western Australia, Australia, Pacific

Boy sculpture at Monte Palace Tropical Garden, Funchal, Madeira, Portugal, Atlantic, Europe

Aerial view of small rock island amongst waves, Madeira, Portugal, Atlantic, Europe

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

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

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

The Callanish (Calanais) Standing Stones, the Neolithic monument in Callanish, Isle of Lewis, Outer Hebrides, Scotland, United Kingdom, Europe

South section of Torre d'en Galmes, a Talayotic site on the island of Menorca, Balearic Islands, Spain, Mediterranean, Europe

Punta Cupetti, top of the mountain, Sardinia, Italy, Mediterranean, Europe

Dunraven Bay, Southerndown, South Wales, United Kingdom

Pak Ou low cave, Vat Tham Ting, overlooking the Mekopng River, Luang Prabang district, Laos

Basalt boulders and cliffs, Johnson Canyon east of Bainbridge Steel Dam Lake near Ash Fork, Kaibab National Forest, Arizona, United States of America

Basalt boulders and cliffs in a section of Johnson Canyon halfway between the Bainbridge Steel Dam and Stone Dam near Ash Fork Arizona in the Kaibab National Forest.

A lone weathered tree in amongst the limestone pavement of the Yorkshire Dales National Park, Yorkshire, England, United Kingdom, Europe

Historic tower of Porto Paglia in the sea on the coast of Sardinia, Italy, Mediterranean, Europe

Old oasis sign, Beni Abbes, Sahara, Algeria, North Africa, Africa

Volcanic rock split, Darya Ajdahar (Valley of the Dragon), Bamyan, Afghanistan, Asia

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

Old Fisherman's house (Casa del Pescatore) in the middle of the sea in Porto Paglia in the coast, Sardinia, Italy, Mediterranean, Europe

Castle courtyard, Sortelha, Serra da Estrela, Beira Alta, Centro, Portugal, Europe

Castellana caves (Castellana Grotte), Apulia, Italy, Europe

A lone weathered tree in amongst the limestone pavement of the Yorkshire Dales National Park, Yorkshire, England, United Kingdom, Europe

Gravesite of John Torrington member of the Franklin Expedition, died January 1st 1846 on Beechy Island, Nunavut and Northwest Territories, Canada, North America

View of Playa Punta Prima and rowing boat on sunny morning, Punta Prima, Menorca, Balearic Islands, Spain, Mediterranean, Europe

Prehistoric rock art in Misool, Raja Ampat, West Papua, Spice Islands, Indonesia, 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

Castle and tower, Sortelha, Serra da Estrela, Beira Alta, Centro, Portugal, Europe

Ivanovo Rock Church The Holy Mother, UNESCO World Heritage Site, Roussenski Lom River Valley, Bulgaria, Europe

Waterfront, Ortigia (Ortygia), early morning, Syracuse (Siracusa), UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Grjotagja cave near Lake Myvatn in Iceland, Europe

Panels depicting scenes from the Gospels, Ivanovo Rock Church The Holy Mother, UNESCO World Heritage Site, Roussenski Lom River Valley, Bulgaria, Europe

Panels depicting scenes from the Gospels, Ivanovo Rock Church The Holy Mother, UNESCO World Heritage Site, Roussenski Lom River Valley, Bulgaria, Europe

Melanes Koros of Flerio, statue left in old quarry, Naxos, the Cyclades, Aegean Sea, Greek Islands, Greece, Europe

Limestone cliffs running north from Cape St. Vincent (Cabo de Sao Vicente), Europe's most southwesterly point, Algarve, Portugal, Europe

Limestone cliffs running north from Cape St. Vincent (Cabo de Sao Vicente), Europe's most southwesterly point, Algarve, Portugal, Europe

Kouros statue, Apollonas, Naxos, the Cyclades, Aegean Sea, Greek Islands, Greece, Europe

Trees at the base of Ayers Rock, Uluru, Red Centre, Australia

Ayers Rock, Uluru, Red Centre, Australia

Catacombs of Santa Savinilla, Nepi, Viterbo, Lazio, Italy, Europe