Destroyed numerous times, this centuries-old bridge has always been rebuilt with its original design.

Something's missing between the arcades of the Palazzo della Ragione in "the city of the three withouts."

The tomb of the mythological founder of Padua is not hidden in some obscure crypt, but stands right in the middle of the city square.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

This Italian museum is a one-of-a-kind celebration of printing and type.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

Ever hear of the Milazzo Cage?

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

The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

The tallest mountain in mainland Netherlands isn't actually very tall.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

Yup, that's a 330-foot yacht passing over the highway.

A modern museum dedicated to the fairytales and dictionary work of the Brothers Grimm.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

This dockworkers' lunch joint has been left leaning by a century of storm floods.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

A popular legend claims that the famous pizza was invented at a restaurant in this alley.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

This Estonian watchtower looks like a big tree with two giant bird nests on it, complete with a "golden egg."

Mysterious craters may have been home to an ancient cult.

Also known as the Temple of Poseidon, this is one of the best-preserved Greek temples in the world.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.