Puerto Princesa Subterranean River, Philippines, Asia

Puerto Princesa Subterranean River


The 5-mile-long island of Palawan Puerto Princesa Subterranean River is the world's longest navigable underground river. Lined by nearly 15 km long cave stalactites and stalagmites, including the world's largest cave chamber into the South China Sea.

The surrounding park is a UNESCO World Heritage Site, is equally impressive, and is home to more than 800 species of plants, 165 species of birds, 30 species of mammals, 19 species of reptiles, nine different types of bats.

Sarisariñama Sinkholes, Venezuela, South America

Sarisariñama Sinkholes


In southwest Venezuela, gravity in Pingdingshan Cerro Sarisariñama, the punched four perfectly round hole nearly 1,000 feet deep into a remote tropical rain forest landscape.

Hundreds of kilometers from the nearest road, the area is so far removed civilization sinkholes not found until 1961, when they found that pilots flying over the mountains.

Tessellated Pavement at Eaglehawk Neck, Tasmania, Australia

Tessellated Pavement at Eaglehawk Neck


Tasman Peninsula coastline is unlike any other in the world named after a rare erosion after the Roman mosaic technique is called mosaic pavement.

There are two different modes of erosion: some stones to form a circular brick similar to bread, and other developers depressions, to collect their proposed boundary between the sea water, reflecting the sky like a sash, has been extended to the sea .

Devils Marbles, Australia

Devils Marbles


The Devils Marbles protected areas known as a sacred place called Karlu Karlu Native Ayers Rock Northern Territory most representative site some serious competition.

Most of the photos rocks concentrated in just two years, but in fact there are many more of these prehistoric rust-colored granite boulders some of which can be as large as 20 feet in diameter scattered area of ​​more than 4400 acres.

Ice Towers of Mount Erebus, Antarctica

Ice Towers of Mount Erebus


In the frozen slopes of Mount Erebus, the world's southernmost active volcano above, superheated gas through steam vents rise to the formation of the ice cave.

When the volcanic gases through the cave, some within the icing to form a rough chimney tower, can reach a height of more than 60 feet. The result is a cold chimney landscape of steam to the cold Antarctic air like a magic factory cluster.

Silfra Rift, Tingvellir National Park, Iceland, Europe

Silfra Rift



Together like puzzle pieces moving tectonic plates in the earth's crust (also known as continental drift), is more obvious than in other places in southwest Iceland Thingvellir National Park.

In the the park expanding Almannagjá Canyon, you can take a stroll in the seams of the Eurasian Plate and the North American plate, as they slowly away, or you can dive into Lake Thingvellir in Silfra rift between the mainland cracks.

Nearly a century, glaciers melted, filtered lava lake, but once the water from entering, it is so clear visibility nearly 1,000 feet underwater.

White Sands National Monument, New Mexico, Usa

White Sands National Monument


Sugar white sand dunes through the Chihuahuan Desert of New Mexico moving annual rate of nearly 30 feet. Due to the evaporation of mineral-rich water near Lake Lucero, the formation of gypsum deposits, then these dunes shaped wind.

Since the beginning of the 20th century, where visitors hiking, the Ranger Travel and coaches drive along 16 kilometers of dunes also provided by the National Park Service.