Macabre astrological automaton clock dating to the late 1400s.

Two stunning 17th-century libraries and a cabinet of curiosities.

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

What remains of the simple red brick chapel where the women's rights movement began.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

A hardware store Buddha statue installed to deter vandalism wound up attracting Vietnamese immigrants who came to pray.

Dr Barnes' $25 billion private collection of art and arboretum.

World's first "penitentiary," meant to be humane, drove men insane.

This active volcano's siren song to suicide jumpers forced authorities to build a fence.

Not quite the menace it once was, this monster still has some chops.

A Buddhist temple to honor insects that died for science.

Starship-temple contains 400 tons of drinking water and offers free Japanese lessons.

We heard you like volcanoes so we put a volcano in your volcano so you can die for sure...

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

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

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Once the home of a hermetic monk, this cave now houses a small church.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.