A mysterious ruin shrouded in more folklore than fact.

This centuries-old wooden wonder was built in less than a year and is one of Europe's largest timber-framed churches.

This Gothic castle-like portal is a testament to the amazing craftsmanship of the navvies who built the railway tunnel.

When the USA donated cement and funds to expand the airport in Laos, the Laotians built a massive monument instead.

The official meeting point for the oddly named governing assembly of ancient Sweden.

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

Archaeologists are still unraveling the secrets of the brutal massacre that wiped out this ancient fort.

This abandoned Antarctic research station is a Soviet ghost frozen in time.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

An abandoned vacation home spent a decade taking on legends. It's now taking on water.

An Italian hillside ghost town.

A creepy, deserted mock Arabian village can be found in the middle of the Qatari desert.

A haunting theme park is slowly being swallowed by the jungle.

A series of five defunct panopticon prisons in Cuba.

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

An abandoned stretch of elevated road in the middle of the Brazilian jungle.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

An abandoned saucer-shaped monument in the Bulgarian mountains.

Surreal riveted sea forts once protected the Kent shores from German attack.

Some 20,000 dust-covered unwanted vehicles languish in the desert.

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

Hidden amid the tropical forest in the Caribbean Sea are the decaying ruins of the Cocaine King's luxurious island party home.