This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

A modern-day Lascaux cave underneath Paris.

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

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

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

A surrealist timepiece by the artist of melting clocks.

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

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

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

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Notorious artist squat renovated into legal studios.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

Pop culture has helped to keep this iconic British building from being destroyed.

The medieval-looking hammer beam teak roof may be a Victorian vanity, but it's still absolutely magnificent.

This museum honors the young maritime hero who became an unexpected Victorian-era celebrity.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

The sign at the garden gate reads: “These Plants Can Kill.”

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

The highest peak in all of England is plagued by dangerously fickle climate shifts.

A 200-year-old collection of oddities and medical paraphernalia.

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.

The artwork is tucked within a cave on a tiny Scottish island only accessible at low tide.