This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

A fairytale island floats in the middle of Italy's little-known Lake Orta.

The glowing blue Nymphaeum of Emperor Tiberius.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Every year, the town of Menton, France, turns lemons and oranges into giant sculptures depicting windmills, dragons, and more.

A reconstruction of a classic mansion on the island of Delos was designed for a historian and archaeologist.

The oldest continuously operating mint in the world that has been making coins since the 9th-century.

This plaza is home to a number of works, including Montpellier‘s own Arc de Triomphe.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

The lost Latin words were reconstructed using the holes from the nails that once pinned them in place.

A fortress on this island housed the mysterious prisoner known as the "Man in the Iron Mask" for more than a decade.

This mosque was based on Sub-Saharan Islamic architecture and created for the Senegalese Tirailleurs.

This lesser-known Frank Gehry building houses a treasure trove of cinema history.

A quaint medieval harbour where Benjamin Franklin landed in 1776.

This pair of running lions engraved on animal bone is one of the earliest artistic depictions of big cats.

The huge golden reliquary of a testicle-smashing saint.

A functioning Roman-era aqueduct and bridge in rural southwest France.

This little train station is forever immortalized in film history.

The shape of this old salt factory complex was inspired by the course of the Sun.

A suspended footbridge allows for traversing this gorge carved through the French Alps.

The ruins stand as a somber reminder of France’s worst civil catastrophe of the 20th century.

This garden houses the remains of the ancient Greek port of Marseille.

This prehistoric figurine is the oldest known realistic depiction of a human face.