After being lost for decades, this striking mural depicting the atomic bomb covers the wall of a busy Tokyo metro station.

An unexpected curiosity cabinet hidden within a department store in the Japan Post tower.

This active volcano's siren song to suicide jumpers forced authorities to build a fence.

We heard you like volcanoes so we put a volcano in your volcano so you can die for sure...

After a profound show of devotion for his master, a dog becomes the symbol of loyalty for an entire nation.

A 20-meter (65-foot) robot towers over Tokyo Bay.

If Hello Kitty were Mickey Mouse, this would be Disneyland.

The original "capsule building" is a masterpiece of Metabolist architecture.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

A wall of chewing gum moonlights as collective art.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

The legendary building that needed ghostly approval before being built.

For one day every month Barcelona's Estació de França transforms into a market for model trains.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

Week-long block party becomes a competition for the best decorated street.

Barcelona's historic 19th-century sewers, whose foundations were laid in medieval times, are open to the public for exploring.

The quintessential Japanese rock garden has existed for more than 500 years.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

This incredible mountainside temple is home to intriguing statues of demon-like creatures.

Twelve hundred stone carvings guard this off-the-beaten-path Buddhist temple.

The world’s first hotel to be run by robots.

The traditional houses along the coast of this charming Japanese fishing village allow people to sleep above the sea.

This traditional Japanese-style house doubles as one of James Turrell's colorful works of art.