Places 85wombats Wants to Go

Some 10,000 works of ancient rock art cover these volcanic basalt outcrops near the Gila River.

Bacteria and algae give the salty water its bubblegum hue.

These recently uncovered walls are all that's left of Washington, D.C's first defense contractor.

The massive white mound and accompanying water terraces are a striking geological oddity.

Perhaps the only prehistoric monument with its very own public bus stop.

Thousands of acres of beautiful wild landscape in the Great Basin.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

Part of the medieval watchtower is displayed in an otherwise ordinary parking garage.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.

The medieval network of canals hidden underneath the city is opened to explorers each year.

This set of mysterious petroglyphs in the Peruvian jungle could shed light on centuries-old activities in the region.

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.

Where school buses go to die and be reborn as whimsical works of art.

A jungle cave in Peru of unknown depths, otherworldly sounds, and strange nocturnal birds that navigate by echolocation.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

A tower-like theater in the Swiss Alps built to withstand the high winds and avalanches of the mountain pass.

Local lore says the devil built this beautiful medieval bridge to help a fleeing bandit.

Archduke Ferdinand II's collection of rare objects is considered one of the oldest museums in the world.

Great Britain's only hat-making museum.

The largest radio telescope in the world searches for extraterrestrial life from the remote limestone peaks of southern China.

A mysterious ancient network of thousands of perfectly straight lines stretching across miles of Bolivian desert.

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

A 1,500-year-old, 3-story subterranean city where ancient Persians took refuge in times of war.

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.