The oldest stone house in Paris was built by its most famous alchemist.

Notorious artist squat renovated into legal studios.

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

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

A two-way chairlift system between Zugliget and the highest point in the city.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

Once the home of a hermetic monk, this cave now houses a small church.