This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

Not your typical pet cemetery.

An ancient city hidden in the heart of the Sierra Nevada mountains.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Elaborate series of tunnels where traces of mass suicide are still visible.

Unusual hexagonal rocks formed by cooling lava named for their resemblance to traditional Japanese tatami mats.

Nine Gardens in one—with tea service.

Every spring, this walkway outside the Japan Mint turns into a cherry blossom tunnel.

A Japanese cat island also populated by the descendants of a band of banished samurai.

This garden located inside a bamboo forest once belonged to a famous Japanese actor.

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

A beautiful bamboo trail tucked in this famous Japanese shrine.

A train ride to the middle of nowhere gives its passengers some of the most iconic views of Japan's seasons.

Have a soak at this retro bathhouse, where you will find Japan's first electric bath, tiling from Spain, and wood carvings representing the Japanese invasion of Manchuria.

The cutest shrine in Kyoto is dedicated to bunnies.

The iconic castle that withstood a magnitude 6.2 earthquake has become a symbol of resilience.

Historical Japanese-Dutch relations are honored with haunted rides and flower fields in this replica town.

A hub of information on tropical diseases and their treatments.

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

Nestled in an unassuming residential area, this "forbidden forest" is rumored to spirit away those who dare enter it.

The only Edo-period ferry that is still in operation in Tokyo today.

Kawaii meets poisonous at this unique art gallery.

Rubbing salt on this small stone dog is said to make wishes come true.