An Australian lake whose pink hue defies scientific explanation.

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

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

Remnants of a storybook amusement park hidden behind a strip mall.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

A 16th-century horror show built in a lovely Italian garden.

Dramatic river bend surrounds a natural red-rocked pedestal.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A swing to dangle you off the very edge.

An eerie, derelict amusement park in Berlin.

A bizarre house filled with an astounding array of collections.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

A crumbling hospital from the 1850s on Roosevelt Island.

A fiery crater has been burning in the Karakum Desert since 1971.

The rocks in this arid basin leave trails of movement behind them.

Medicinal spa created with the discharge from a geothermal energy plant.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Most-visited and most-photographed slot canyon in the American Southwest.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

An exquisite tunnel of cascading flowers.

A church of bones, decorated with 40,000 human skeletons.