Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

Yo, Adrian!

This elaborate towering structure was once famed for its revolutionary height.

Statue dedicated to the star of an old television show.

Lyon's miniature version of the Eiffel Tower was built as a statement in support of French secularism.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

One English town's celebratory landmark spurred more trouble than anticipated.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

You would never come across this tiny green oasis if you didn't know it existed.

Ancient barriers wrap around what was once an important stop along the Silk Road.

One of Belgium's oldest hospitals saw patients from the 13th to 20th centuries before becoming a museum.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

A massive, secret marina for the Nazis' most formidable weapon in the Atlantic.

Hundreds of dwarf beeches create an unusual, haunting forest in the north of France.

The somewhat misnamed 'Garden of Shells' lovingly built from found objects.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

This gruesome biblical parade celebrates the one day a year that a bit of Jesus' blood turns to liquid.