A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

Community bookshelf of 25-foot-tall book spines.

This abandoned Croatian stronghold never saw a great deal of conflict but it is still a beloved relic nonetheless.

San Francisco's newly reopened hands-on science museum.

This 150 foot seven-tiered cascading waterfall is one of the hidden gems of the White Mountains.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

Once a state-of-the-art tuberculosis treatment spa, these ruins are now ruled by paintball players.

The once and future home of New Zealand's famed Pink and White Terraces.

A 4,500-year-old forest is slowly being revealed from beneath the sands of a Welsh beach.

This Costa Rican topiary park is a surreal garden of unearthly delights.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

Modern technology and live displays tell the story of the Pacific during WWII for the Internet generation.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

This hospital once pioneered the use of electroencephalograms, but fell into maltreatment, abuse, and eventual abandonment.

Thousands of flamingos and other bird species flourish in these Camargue wetlands.

Established in 1853, this crumbling cemetery sits forgotten on the corner of Church and Chapel in Gold Country.

The ruins of a lighthouse on the island Amelia Earhart never reached.

A repository of Pasadena history.

This perfectly preserved Chinese medicine shop was untouched for decades before being reopened as a museum.

Secluded amid upstate New York’s Adirondack Mountains lies this subterranean emblem of a nation on the brink of nuclear war. And it's for sale.