A luxurious doomsday bunker hidden beneath an unassuming Las Vegas home offers the best of subterranean suburbia.

Sample specialties from Xinjiang at this Shinjuku neighborhood gem.

A lasting remnant of The Blitz.

This ancient oak plays host to carvings of magical elves, gnomes, witches, and other creatures prominent in local folklore.

A bibliophile's heaven that contains hundreds of bookstores, offering over a third of secondhand books for sale in Tokyo.

This set of concrete chambers resonates according to different notes of octaves.

A 1950s beatnik coffee house, turned 60s counterculture hotspot, turned modern music venue.

Its collection distills more than 60 years of pop culture in Japan, from Godzilla to Hulk Hogan.

On Japan's Tashirojima Island, cats are king.

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

An exquisite tunnel of cascading flowers.

The housing complex served as an anti-fascist fortress during the Austrian Civil War.

The heads and relics of 179 monks slaughtered by pirates are on display within this Ceonobic Monastery.

This ancient walled garden turns fog into food.

A Swiss amusement park entirely dedicated to the theory of ancient astronauts.

This 16th-century monastery has been turned into a surrealist architecture compound.

This museum in a shuttered train station remembers the island's forgotten rail system.

Soak up some local history in this restored Edwardian era swimming pool.

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

A visionary Italian architect created an impressive cluster of concrete structures for a family's private tomb.

The bridges portrayed on EU currency aren't fictional anymore.