The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

This magnificent herd of stampeding elephants has been frozen in time for over a century.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Tucked away on Somerville Avenue is a curated mycological gallery.

The celebrated eyesore created by starry-eyed sweethearts.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

France's Lilliputian park displays over 100 of the country's monuments for visitor perusal.

France's high-tech, future-themed amusement park.

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

The video game-themed street art first popped up in the French city.

This stunning French estate was so lavish that it landed its original owner in jail for the rest of his life.

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

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

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

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

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

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

Its columns were all carved from the same white oak tree.

Try a classic Necco candy bar being resurrected in a small suburban shop.