A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

A Neolithic burial site built 1,000 years before Stonehenge.

A showcase of canine neckwear spanning five centuries of doggie fashion and function.

César Baldaccini's iconic sculpture of a 40-foot thumb stands tall in La Défense.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Notorious artist squat renovated into legal studios.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This foreboding medieval castle was twice besieged by barons rebelling against the English king.

This 2,700-year-old woman is the jewel of the Maidstone Museum's Egyptian collection.

Horsemen once used this tilting post during jousting practice.