A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

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

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

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

The culprit who accidentally lit this 3,500-year-old tree on fire stated "I can't believe I burned down a tree older than Jesus."

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

A vast array of tropical plants collected by a vacationing couple.

A secret, rocky playground hidden amongst the plain white beaches of the Florida coast.

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

This large round boulder is said to emit spiritual power, but it may just be magnets.

Pablo Neruda's custom-built lover's nest was made to remind him of the sea and named after his mistress' hair.

This was once the center of the Birdman cult, and is now a World Heritage Site.

In the Middle Ages, villagers would sound this stone trumpet to boost fertility and coax fish to shore.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

This snug medieval lane is one of the narrowest streets in the world.

This solitary monastery may hold the remains of Vlad the Impaler (but probably not).

A former zoo turned public park, where visitors can hang out in the old animal cages.

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

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