A century-old network of freight tunnels underneath the city's historic business district.

You can take a class, browse the library, or visit the lavish lair of an international men's humor society.

Huge abstract sculptures of the Puerto Rican Flag.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

An unassuming store hides relics of its former life as the jazz club that hosted some of the best black performers of the 1920s and '30s.

This shop specializes in oddities and Victorian-inspired wonders.

An artsy hidden staircase leads to breathtaking views of San Francisco.

The only theatre in the world constructed specifically for sound movement.

Appropriation-friendly collection of books, periodicals, and more.

Birthplace of the Tendai sect and home to the marathon monks.

A beautiful bamboo trail tucked in this famous Japanese Shrine.

Enormous underground chamber built to detect 'ghost particles' of the universe.

Hot springs monkey spa in the middle of Hell's Valley.

Open-air museum with an elaborate sculpture garden, stretching for over 70,000 square-meters.

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

Fine dining in the bizarre world of Lewis Carroll.

Once the most densely populated place in the world, this island is now a ghost town.