A beautiful but toxic fountain of mercury.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

In this Parisian garden's grotesque former life as a zoo it fed exotic animals to the bourgeois and put humans on exhibit.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

Electrical pylon in the shape of Disney's beloved mouse.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

This bridge was constructed from the rubble of the infamous Bastille.

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

"We Seceded Where Others Failed."

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

A building so large that it has its own weather.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

A monument celebrating the idea of reaching inaccessible places.

The Sun King's military models, saved from the Louvre.

One of many gator theme parks, abandoned in the sugar fields of South Florida.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Where manatees are the snowbird vacationers in these balmy Florida springs.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.