The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

A Victorian park cemetery, standing on the site of what was once the Great North Wood.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

Infamous and now demolished panopticon prison built by its former inhabitants.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

One of the world's oldest universities houses an incredible collection of anatomical models, mummified body parts, and human bones.

A breathtaking canyon offers stunning views and frightful pathways through an ecological paradise.

The most alien-looking place on Earth.

One of the most remote and isolated villages on the Arabian Peninsula.

Yemen's "Stone Palace" looks like it was carved right out of the tall stone column on which it is built.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Central Europe's largest collection of mini-bottles is on display at this museum devoted to a bitter Hungarian liquor.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

A fake Transylvanian castle houses a cathedral of antlers.

This crumbling folly looks like an enchanted left over from Middle Earth.

A mysterious emblem tucked in an small alleyway is actually the coat of arms of a heroic medieval family.

One man's quest to collect artifacts from every aspect of human life has resulted in this eclectic Argentinian museum.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

A mysterious castle built as a monument to lost love.

Bermuda triangle lighthouse, site of mysterious disappearances, left to crumble into the Atlantic.

A steamer run aground near Bimini lives a second life as a playground for scuba divers.