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

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

France's national museum of scientific and industrial instruments.

Paris' linguistic guide to the international language of, yes, love.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

This Paris art space celebrates the creativity and ingenuity that springs from abject poverty, especially in Africa.

This structure atop a craggy cliff in one of the most beautiful parks in Paris boasts an unbeatable view.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

Indents in the pavement are all that remain from a grisly death machine in Paris.

France's most famous cemetery, with some of its most curious tombs.

The final resting place of the "father of special effects."

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

The first green space constructed on an elevated viaduct.

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

This museum houses an imposing skeleton army comprised of creatures great and small.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Stockholm's narrowest alley is barely over two feet wide.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

The art museum is decorated with creatively remodeled pre-Nazi swastikas.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.