A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Once a thriving business district, this former shopping area is now an urban ghost town in the heart of the city.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

A hidden alley in urban Baltimore is a haven for graffiti artists.

An eerie, decaying ghost town destined to fade into the forest.

The longest skywalk in Taiwan.

This densely-packed cluster of buildings was saved from the wrecking ball and turned into an art community.

A memorial to the thousands of political dissidents imprisoned during the 38-year period of martial law in Taiwan.

Once a prosperous mining village, this tiny Taiwanese town is now overrun with cute cats.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

Grandpa Rainbow felt the neighborhood needed some color, so he picked up a paintbrush and went to work.

A rare pod of derelict midcentury Futuro and Venturo houses lines a semi-abandoned beachfront resort outside Taipei.