Riserva Naturale di Punta Bianca, Palma di Montechiaro, Agrigento, Sicily, Italy

Scala dei Turchi, Agrigento, Sicily, Italy

Cave of Poetry (Grotta della Poesia), Roca Vecchia, Lecce, Salento, Apulia, Italy

Coastline near Praia de Parasio beach, Caroveiro, Algrave, Portugal

Praia Dona Ana coastline, Ponta da Piedade, Lagos, Algarve, Portugal

Praia Dona Ana coastline, Ponta da Piedade, Lagos, Algarve, Portugal

Tidal sorting of white sand and darker minerals into patterns at the west coast Talisker Bay beach, known as a white and black sand beach, an SSSI for its Tertiary basalt lava geology, Talisker Bay, Carbost, Skye, Inner Hebrides, Scotland, United Kingdom, Europe

The Red Wall of sandstone east of Supai Tunnel on North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America

The 11th switchback along the North Kaibab Trail at Grand Canyon North Rim, UNESCO, Arizona, United States of America

Three hikers at foot of Tre Cime di Lavaredo (Three Peaks of Lavaredo), Three Peaks Nature Park, Dolomites, UNESCO, South Tyrol, Italy

An island of rock in an unnamed canyon that leads to Dead Wash in Petrified Forest National Park, Arizona, United States of America

Scala dei Turchi, Agrigento, Sicily, Italy

Wet Beaver Creek Canyon in the Coconino National Forest, Arizona, United States of America

Lake in the Tibesti Mountains, Tigui, Chad

Glacial iceberg detail from ice calved off the Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America

Three Sisters, Monument Valley Navajo Tribal Park, Utah, United States of America

View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

View of Gullfoss Waterfall on the Hvita River in winter, Western Region, Iceland

Continental drift between North American and Eurasian tectonic plates, Thingvellir National Park, UNESCO, in winter, Western Region, Iceland

Fjadrargljufur Canyon, south Iceland

Sunset at Fjallsarlon glacier lagoon on the edge of Vatnajokull National Park, South Iceland, Iceland

Angels Landing, a rock formation 1488 feet high, Zion National Park, Utah, United States of America

Ring of Brodgar, UNESCO, Orkney Islands, Scotland, United Kingdom

A view of the boiling mud at Namafjall, Iceland

Coast around L'Escala, province of Girona, autonomous community of Catalonia, Spain, Europe

Dry stone wall and towering cliffs of basalt lava over Jurassic sediments at the Quiraing, a famous hike and scenic attraction in the far north east of the island, Quiraing, Staffin, Skye, Inner Hebrides, Scotland, United Kingdom, Europe

View above Red Wall Bridge crossing Roaring Springs Canyon, North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America

Red Wall Bridge crossing Roaring Springs Canyon on North Kaibab Trail, Grand Canyon North Rim, UNESCO, Arizona, United States of America

North face of Tre Cime di Lavaredo (Three Peaks of Lavaredo), Three Peaks Nature Park, Dolomites, UNESCO, South Tyrol (Alto Adige), Italy

Jabal Ikmah Site, world's largest concentration of well-preserved Dadanitic inscriptions, 1st millennium BCE, AlUla, Medina Province, Saudi Arabia

Cave of Elafonisos island with orange rock color painted in white, Greece

Natural holes in the rocks full of water at sunset, with sea in the background, Greece

The coast of southern Cyprus

Landscape near Balnakeil Bay, Sutherland, Highlands, Scotland, United Kingdom

Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia

Aerial of the rocky mountains around Zouar, Tibesti Mountains, Chad

Partial View of Mount Denali (Mount McKinley) in Denali National Park, Alaska, United States of America

Close up view of hyaloclastite at Brown Bluff, a tuya, sub glacial volcano, on the east side of the Antarctic Peninsula, Antarctica, Polar Regions

Rock formations of Red Valley (Rose Valley), Cavusin, Cappadocia, Anatolia, Turkey, Asia Minor, Asia

Interesting lenticular cloud formations forming over the island of South Georgia in the Southern Ocean

Red Canyon Arch, over the Utah State Highway 12 Scenic Byway between Panguitch and Bryce Canyon City, Utah, United States of America

Tre Cime di Lavaredo (Three Peaks of Lavaredo), Three Peaks Nature Park, Dolomites, UNESCO, South Tyrol (Alto Adige), Italy

Lago dei Piani inferiore, Three Peaks Nature Park, Dolomites, South Tyrol (Alto Adige), Italy

Mountain scenery, Island of Corsica, France

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

Petrified forest, Agia Marina, Agios Nikolaos Geopark, beach with turquoise water in the south of Greece, Greece

Sharaan Nature Reserve, AlUla, Medina Province, Saudi Arabia

Golden evening light on the cliffs in winter at Dunraven Bay, Southerndown, Bridgend, South Wales, United Kingdom

Golden evening light on the cliffs in winter at Dunraven Bay, Southerndown, Bridgend, South Wales, United Kingdom

Beach at Rathlin Island, County Antrim, Ulster, Northern Ireland, United Kingdom

Hiker in blue jacket navigating rocky landscape near a small waterfall on mount txindoki, showcasing the rugged beauty of gipuzkoa, basque country

A couple observing rocks near the ocean, Natural arch, Bermuda

Kevin Jorgeson climbing "Fantasia" at Lover's Leap, a popular granite climbing destination near Lake Tahoe in California's Sierra Nevada mountains. The cliff is known for its distinct horizontal quartz dikes which make interesting climbing. This route is considered a risky mental test piece because of its lack of good cracks for protection. It was first climbed in 1973 by Royal Robbins and Ken Wilson.

A male mountaineer is standing on the summit of the Barrhorn, a mountain peak of 3610 meter in the Swiss Alps. It is one of the highest summits in Europe to be accessible to experienced hikers. The region of Wallis is home to over 40 mountain peaks higher than 4000 meter. The highest one that is completely situated within the Swiss borders is the Dom, which is visible in the background. The Mattertal runs from Visp all the way to Zermatt and is a paradise for all outdoor enthusiasts, like hikers, climbers, alpinists, walkers, mountain bikers and nature lovers.

A female hiker is enjoying the view near Embd, in the Swiss Alps. This region of Wallis, close to Zermatt, is famous for the outdoor activities one can do. It is a paradise for hikers, climbers, mountainbikers and nature lovers. In the background the Nadelgrat range, with the Ried glacer coming down the hill.

A female hiker relaxing near a river in the Swiss Alps. The region of Wallis, close to Zermatt. In the background is the Ried glacier. This valley is a paradise for outdoor enthusiasts like climbers, alpinists, hikers, mountainbikers and nature lovers. The water is directly coming from the glacier, so very refreshing after an excercise.

A female hiker sitting on top of the Wannihorn in the Swiss Alps. In the background the four thousand meter peaks of the Weisshorn and Weissmies. This region of Wallis is a outdoor paradise for all climbers, hikers, mountainbikers, trailrunners and nature lovers.

A female hiker on her way to the Wannihorn, a mountain peak in the Swiss Alps, close to Zermatt. In the background is the Weisshorn range. This region of Wallis is home to over 40 of 4000 meter peaks and a paradise for outdoor enthusiasts like climbers, hikers, mountainbikers, trailrunners and nature lovers.