Much like rare cloud formations, these rocks, stacks, pillars, caves, cliffs, massifs, volcanic plugs, karsts, arches, hoodoos, and concretions illustrate the tremendous diversity present in all Earth systems.
There are over 2,000 natural sandstone arches within this national park near Moab. Double O (you can see the second, smaller window just below the large one in the shot above) is located in the Devil's Garden area of the park, where many of the most photographed formations are found.
Man-Pupu-Nyor means "Little Mountain of the Gods" and is the name of the hill on which these formations -- the Seven Giants -- stand. The Komi Republic is remote and sparsely populated, the Ural Mountains rising to its east. The republic gets its name from the Komi people, an ethnic minority whose history has been connected with that of Russia since the 1100s AD.
This 47ft-high, 350ft-long monzogranite formation is just outside of Hyden, Western Australia, 300km east of Perth. It's crazy how, when captured by a skilled photographer, the rock appears to be in the process of 'breaking' on unsuspecting visitors.
A karst formation near Yangshuo in southern China, Moon Hill is an old limestone cave that's eroded to the point where all that remains is this sweet doughnut of an arch. There's a 20-minute trail to the base of the arch -- prepare to be swarmed by food / drink vendors.
The 6 monasteries that make up the Meteora, on the edge of the Plain of Thessaly in central Greece, are constructed on top of the sandstone pillars that are the weathered remains of a plateau created during a period of seabed uplift around 60 million years ago.
The first-ever US National Monument, declared in 1906, Devils Tower rises 1,267ft above the surrounding landscape. Formed by an igneous intrusion, it was once completely covered by a large sedimentary hill that, as it erodes, exposes more and more of the monolith.
There are many cliffs on the Quebec coast of the Gulf of St. Lawrence -- Percé Rock happens to stand in the sea a few hundred meters offshore. It's 88m high, over a kilometer long, and has a 20m-tall natural arch -- one of the largest such water-bound formations in the world.
Technically not a canyon, Bryce consists of a series of amphitheaters eroded into the side of the Paunsaugunt Plateau. Filling these spaces are the park's most distinctive natural features -- hoodoos, pinnacles of colorful eroded sedimentary rock as tall as 200ft.
The natural phenomenon of columnular basalt is a volcanic byproduct -- the (mostly) hexagonal columns form naturally as thick lava rapidly cools, contracting and creating cracks in the surface of the new rock. The site pictured above is near the Santa Maria Regla Hacienda, north of Mexico City in the state of Hidalgo.
These massive boulders of calcite-fused mud took 5 million years to form under the seafloor off the coast of Otago. Like Devils Tower, they remained hidden until uncovered gradually by forces of erosion.
Within easy view of Catania, Sicily, are three jagged islets that according to legend are the stones thrown at Odysseus in the Odyssey. This story is supported by their local name: the Islands of the Cyclops.
"Tsingy" is the Malagasy name for karst limestone formations. This area, part of which is included in Bemaraha National Park, can be accessed by road from Morondava (the city famous for its proximity to the Avenue du Baobab).
The Yucatan is covered with cenotes, deep pits that result from the collapse of sections of limestone bedrock, revealing the water table beneath. Ik Kil is located in the archaeological park of the same name, near the Mayan site of Chichen Itza. Its water is swimmable -- every day, hundreds of visitors take advantage.
A 100m-high block of sandstone detached from the adjacent cliff face, Hanging Rock is a climbing destination in New South Wales' Grose Valley. To get there, take the dirt Ridgewell Rd. out of Blackheath for 2.5km until it ends at the trailhead for Baltzer Lookout.Photo: TheTannykid
The Four Corners region of the Southwestern US is particularly rich in unique rock formations -- Antelope Canyon is one of the most visited. Located on the Navajo Nation in central Arizona just south of the Utah border, the canyon is only accessible by permit and guided tour.
The area around Göreme in central Turkey is covered with hundreds of these fairy chimney formations, which, centuries ago, had homes, churches and monasteries carved into them by the locals. Today, some structures function as hotels, and balloon rides are a hot tourist commodity.
The Externsteine are five giant sandstone pillars, perhaps most remarkable for standing in an area of northwestern Germany that's otherwise lacking in rocks. In addition to the bridge visible above, the site also features stairs and carvings.
Karlu Karlu (Devils Marbles), Northern Territory, Australia
Huge, spherical granite boulders cover the ground at this site in NT, Australia, some of which are balanced precariously on uneven surfaces. The extreme differences in temperature between day and night cause constant expansion and contraction of the rocks, which can result in full cleavage.
Mythical creation story of the "Troll's Hat," courtesy of Wikipedia: "According to legend, the hole was made by the troll Hestmannen while he was chasing the beautiful girl Lekamøya. As the troll realized he would not get the girl, he released an arrow to kill her, but the troll-king of Sømna threw his hat into the arrow's path to save her. The hat turned into the mountain with a hole in the middle."
Photographer's notes from the Buttes, which requires a lottery-won BLM permit to visit: "The day I went into the Wave it was about 40 degrees with winds at a steady 30-40 MPH - it was downright nasty since there is a lot of sand and it was blowing everywhere. I was following another party toward the Wave and we kept trading hiding spaces from the wind. When I got to the actual Wave area the wind was so strong I could barely stand up. I was so worried about shooting with my Canon 30D that I ended up using my backup camera, a Panasonic Lumix ZS-3 for most of the shots and I really liked how they turned out."
If there's a good layer of fog present, the karst pinnacles of Wulingyuan can appear to be floating -- locals believe the area was the inspiration for the landscape in Avatar, and have started running a “magical tour to Avatar’s floating mountain.”
On the southern coast of Iceland, near the village of Vík í Mýrdal, the Reynisfjara are a group of basalt sea stacks just offshore from the mountain Reynisfjall. The columnular basalt of the latter, and one of the former, can be seen above.
Sahara el Beyda, or the White Desert, is 30 miles north of the town of Farafra. It gets its name from large tracts of chalk rock that cover the ground, some of which has been shaped into improbable formations by sandstorms.
The topography along the Li River in Guangxi is similar to that of Halong Bay, Vietnam -- and in both places, boat trips are popular among tourists. After a few different confluences, the waters of the Li flow into the Pearl River, which empties into the South China Sea near Hong Kong.
The granite and sandstone mountains of Wadi Rum comprise a vast system of valleys and canyons that tell of ancient geologic uplift and floods, and continuing erosion. Get around the area on foot, by camel, or in the back of a Bedouin pickup.
There's good diving in the waters around the window, which is situated on the island of Gozo. Cliff diving is another popular, if less-sanctioned, local activity. Better go see this one soon -- it's falling apart and apparently only has a few years left.
There are an estimated 40,000 basaltic columns contained within this formation on the northeastern Irish coast. Legend says the causeway was built to connect the island to Scotland and was destroyed by the giant Benandonner when he was driven out of Ireland.
Many individually notable features are present along the course of the Li River in Guangxi. Reed Flute Cave, a 240m passage inside the karst mountains, is one of them. Not sure about the multicolored lighting that's been added for visitors, but it makes for a cool shot.
This sea stack is a volcanic plug -- a formation of hardened magma from inside an ancient volcanic vent. It's associated with the volcano that formed the modern island of Stromboli, in the Tyrrhenian Sea north of Sicily.
The common name of this area is taken from the Navajo Bistahí, which means "among the adobe formations." In addition to the hoodoos, petrified wood, and other rock features, there are petroglyphs -- people have inhabited the region continuously for 12,000 years.
Ischigualasto Provincial Park, on the northeast border of San Juan province, is an area associated with dinosaur remains and interesting geologic formations like these spherical concretions, at a site known as the "Ball Court."