Alien rock formations grown from the sands of an Australian national park.

A sparkling sandstone cliffside that's worth a visit while it still exists.

This extraordinary geological oddity resembles human-made pavement.

Prehistoric park filled with the fossils of dozens of extinct species including Australian megafauna.

A clear example of the process of erosion in action.

Send a postcard while vacationing with Satan.

This peculiar lake of pitch is so thick and viscous that one can walk on its surface.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

An exquisite tunnel of cascading flowers.

The fairy tale castle of the "fairy-tale king."

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

These layered sandstone mountains in China look like they are made of pressed crayons.

The latest in a series of long glass bridges suspended at terrifying heights.

This vertical pinnacle in China was the inspiration for the floating mountains in the movie “Avatar.”

A total of 999 stairs lead visitors through a massive hole in a mountain known as the Gateway to Heaven.

A canvas of crops grow from vibrant red soil in this terraced farmland.

A part of the world's largest marsh seems to be growing bright red Martian grass.

This expansive bridge in the Canadian wilderness was originally just built for friends.

Fossils, railroads, and waterfalls!

A sacred lake composed of over 300 separate pools of highly concentrated minerals.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

Ancient human, animal, and geometric figures drawn in the earth.

An American city stranded at the tip of a Canadian peninsula where strict adherence to the "49th parallel rule" became problematic.