Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Theme park featuring miniature replicas of European monuments.

Climb inside an iron crystal magnified 165 billion times its normal size.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

Meet the bronze beloved pet to a family of famous peeing statues.

Brussels' favorite peeing boy has a sister.

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

Curious cave that stays a cool 56 degrees all year long.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

A chessmaster's dream destination.

Man-made geyser that rises to the exact height of the Gateway Arch.

Less a museum than a bizarre fantasy world created by artists and engineers.

This huge clock made of flowers and simple machinery was once used a political weapon.

A pharmacy built in the shape of a mortar and pestle, now resembles a fancy cocktail.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

An obsolete, vanishing traffic device warns Cincinnati drivers away from middle-of-the-road obstructions.