Scattered around Atlanta are little doors with big charm.

An underground magnet for ever-changing street art.

The remains of a magnificent medieval fortress that was the capital of a vast empire.

This intricate Hindu temple is the largest of its kind outside of India itself and was constructed like a giant puzzle.

This massive store is home to an eccentric collection of vintage, retro, and peculiar goods.

A bizarre roadside attraction and the first instance of miniature golf in the world.

This quirky curiosity shop takes its cues from the world's bazaars.

A field filled with carved medieval tombstones called stećak.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

An underwater city for the dead.

A giant 400-acre preserve in North Florida for displaced wolves.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

Possibly the world's only drive-in movie theater with an attached motel.

An archive of nearly every day of Buckminster Fuller's life.

A sudden forest of traditional Papua New Guinean art works is hidden in a corner of Stanford University.

Rodin's famous depiction of Dante's 'Inferno', amidst a sculpture garden of many of his other works.

This odd California folly seems like it was almost designed to accumulate urban legends.

The world's most famous donkey lives in this pen.

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

San Francisco Bay's ghost town.

Historical trolley restoration and operation at History San Jose, Kelly Park.

A statue commemorate Tommie Smith and John Carlos's brave protest at the 1968 Olympics, a watershed moment for civil rights.

A life-sized mammoth sculpture marks the spot where the remains of a Columbian mammoth were discovered in 2005.