A century-old tradition has culminated in a small but singular collection of feline effigies.

This network of narrow, medieval passages has the most delightful name.

Follow the original medieval paths that wind through this intriguing section of the city.

An incredibly well-preserved piece of ninth-century Viking poop.

A miniature village mimics the surrounding buildings so well it includes itself.

Puzzles within puzzles hide a golden treasure in this hedge maze.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

A hotel and restaurant serving as the mecca of kitsch.

An alley covered with 20 years of bubble gum.

A lion given to the prime minister somehow got stuffed and sent to Florida.

Possibly the world's oldest rug, this Egyptian relic is woven entirely from ancient cat hair and once carried a mummified human foot.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

It's a pretty creepy lock-up.

A tribute to Ponce de Leon's supposed quest for eternal youth.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The trials and tribulations of marking Poe's grave.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.