The ceiling of Prohodna Cave in northern Bulgaria affords a peek at the sky via two deity-sized-eye-shaped holes.

A futuristic, brutalist masterpiece that is also strangely prison-like.

17th century palace once a meeting place for politicians.

Sofia's legislative center is continuously reinventing itself.

A magnificent, glittering building tucked into a tiny Bulgarian mountain town.

Shells collected from over a hundred different countries line the walls, floors and ceilings of this fantasy museum.

Largest graveyard in all of Japan surrounds a famous mausoleum.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

The magical, mossy forest that inspired Princess Mononoke.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

A waterfall runs right through the middle of this Taiwanese shrine to the hundreds of workers killed while building a nearby highway.

A rare pod of derelict midcentury Futuro and Venturo houses lines a semi-abandoned beachfront resort outside Taipei.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

The world’s largest work of glass art hides in this stunning Taiwanese subway station.

Grandpa Rainbow felt the neighborhood needed some color, so he picked up a paintbrush and went to work.

Steaming blood-red hot spring from hell.

A derelict New Zealand-themed amusement park in Japan.

The 43-mile route crosses through six islands with gorgeous views of the Seto Inland Sea.

A thick blanket of beautiful pampas grass cloaks this unique Japanese landscape.

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

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

With over 12,000 different species of plants, this botanical garden is Japan's oldest and most diverse.

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

Cabaret where the show girls are all androids, and the patrons couldn't be more pleased.