Closed for decades, this strange symbol of Japan's Expo '70 has finally opened its psychedelic insides to the public.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

Erosion and time have created a naturally-formed water park.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

Dim sum, served in a grand old theater.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

Cozy basement bar sports an inventory of over 2,000 beers.

This massive melon is a recreation of a similar gate from the Pan-American Expo.

A natural gas leak provides a flickering flame beneath a waterfall.

The largest and most famous wax anatomical collection anywhere in the world.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

A take-out restaurant that only serves cuisine from countries with which the United States is in conflict.

The ancient tomb acts as a calendar that keeps perfect time.

The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

American soldiers discovered Europe's best one-liner at the end of World War II.

An extraordinary mixture of natural beauty and man-made phenomena.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

A failed Russian themed village and amusement park in Niigata prefecture.

The self-mummified monks of Japan.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

This South London cemetery holds the remains of more than 15,000 people.

A hands-off space for graffiti artists to hone and display their skills.