The now-overgrown beach resort was once frequented by Yugoslav military elite.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This former coal mine has been turned into a sprawling modern art complex.

This dangerous-looking suspension bridge may have been too unstable to remain open.

One of the largest caverns in the world has a maw large enough to stack cathedrals in.

This historic hydroelectric power plant in Japan has been preserved and is open to the public.

A massive cave complex boasts some of the clearest water (and most charming bats) in the world.

One of the first hotel rooms in a pod.

One of Japan's most famous sights, the bridge was originally built in 1673.

The world's largest drain sits below the city of Kasukabe, Japan.

This historical theme park celebrates all things noodle.

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

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

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

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

The magical, mossy forest that inspired Princess Mononoke.

Experience park where visitors are told to expect the unexpected.

Every autumn, this hillside is ablaze with red summer cypress.

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

Stunning wetlands ablaze with pink lotus flowers.

Vietnam's feral abandoned water park offers access to a post-apocalyptic funscape, now with fewer crocodiles.

World's largest cave was only discovered in 1991, and now offers tours to the public.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.