Abandoned substation turned village treasure.

This mysterious and once-grand memorial still embodies a remarkable architectural vision.

An intricately decorated tiny place of worship.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

A public park off the beaten path with a beautiful waterfall and 13th century Cistercian abbey.

Swiss vineyards in a UNESCO heritage site.

Bits of architecture from a town destroyed in World War I now decorate this hotel garden.

This elaborate Byzantine-style building was designed for a not-so-pretty purpose.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

Where Aleister Crowley taught magick in "La Chambre Des Cauchemars," his "Chamber of Nightmares."

Abbey built on the ruins of Roman catacombs.

What was once the base for Russia's first nature reserve is now a ghost town, right on the shore of Lake Baikal.

Siberian ghost town built by gulag prisoners.

Once a bustling fishing port, this semi-ghost town is now more than 90 miles away from the shore.

Azerbaijani ghost town, decaying after a war left it an armed forces buffer zone.

An abandoned town of skeletal wooden homes.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

Built to ward off Napoleon's army, this city-sized abandoned Russian fort is now perfect for urban exploration.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

Spend the night in 1920s Latvia in this historic recreation and movie set.

This abandoned secret city is a crumbling wonderland of Soviet ruins.

Once swallowed by flood waters, this village has emerged as an eerie shadow of its former self.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.