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

According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

The words of the neighborhood's most famous poets adorn four concrete walls.

This charming candle shop has been in business since 1789.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

This Central New York ghost town was once a prosperous railroad community.

The ruins of an abandoned church loom within a picturesque Ukranian village.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

This 17th-century pub once had a hole in its wall so the neighboring blacksmith could easily access beer.

An abandoned 17th-century baroque hunting lodge with a wonderfully strange architectural plan.

You can row a boat through this ancient underground reservoir.

In the middle of a remote desert town is a surprisingly opulent hotel.

This once-derelict building is now one of the most beautiful bookstores in the world.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

A historic blockhouse and trading post give a glimpse into the early colonial history of South Carolina.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

This "little gallery in the middle of nowhere" is housed in a 170-year-old horse barn in the Missouri Ozarks.

A spiritual sanctuary in a natural cave.

This tiny movie theater was the last one in the U.S. constructed in the Nuevo Deco architectural style.

A network of concealed passageways lies within a busy London Underground station.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

This fairytale-like structure is the last turf church ever constructed in Iceland.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.

Local myth claims this is a Sears catalogue home with its windows installed upside-down.