The smallest museum in Basel, Switzerland, is a two-foot-by-two-foot window in the door of a 600-year-old house.

One of the world's largest collections of pharmaceutical artifacts.

One of a series of no-purpose kinetic artworks by Swiss sculptor Jean Tinguely.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

A silly medieval mural preserved on the side of a Viennese house.

Baroque celebration of the end of the Great Plague of Vienna.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

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

Be(w)ar(e) the moat around this historic Czech castle.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

A surreal statue honoring Prague's favorite literary son.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

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

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

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