A new sculpture calls attention to climate change in the centuries-old city it threatens.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Go inside to really appreciate this 500-year-old technological masterpiece.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

Venice's island of the dead.

This demon atop the Notre-Dame de Paris looks utterly bored.

The celebrated eyesore created by starry-eyed sweethearts.

A unique military outpost carved into a rocky outcrop in the English Channel.

In France, a medieval-style home pays homage to an intrepid explorer who discovered Québec.

A medieval house adorned with enigmatic carvings, including one of a man displaying his masculine attributes.

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

An image of the legendary saint stands in the shadow of a cathedral she liberated.

Old vessels have been transformed into artistic canvases in this unusual cemetery.

Claude Monet was baptized in this lavishly ornate Paris church.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

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

Guests can stay at a hotel in the former French abbey where lie the tombs of King Henry II and King Richard the Lionheart.

Folklore and history carved into Brittany's coast.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

Walk through living pictures and music in the Cathedral of Images.

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