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

There has been an astronomical clock on this spot since the 14th century.

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

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

The celebrated eyesore created by starry-eyed sweethearts.

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

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

France's national museum of scientific and industrial instruments.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Hundreds of hidden passageways weave through the old quarters of Lyon.

This ancient theater was once the home of fierce gladiatorial battles.

A sublime medieval path adorns the marble floor of one of the most beautiful Gothic cathedrals in France.

The encased skull that is widely believed to belong to St. John the Baptist.

The most famous location in China was home to whole dynasties worth of imperial rulers.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

These locks on North America’s oldest canal are named after a porcine rock formation.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

A self-funded cemetery with a long list of inhabitants.

Come for the flowers, stay for the bats!

This 15th-century mosque is a beautiful blend of Hindu and Islamic architecture.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

An imperial fortress city that incorporated cultural elements from the entire Mughal empire, only to be abandoned the year it was finished.