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

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

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

This massive blockhead sculpture hides an entire library.

The first green space constructed on an elevated viaduct.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

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

This modest marker near Notre Dame identifies the very center of Paris.

Abandoned railway line circling the city of Paris.

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

Notorious artist squat renovated into legal studios.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

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.

Copenhagen's celebrated theme park and gardens.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

A peculiar clock commemorates a historic victory won by ringing the noonday bell an hour early.

An enormous and lavish Gothic church in Czechia.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

Be(w)ar(e) the moat around this historic Czech castle.

A massive 1830s industrial site once known as Czechia's "Iron Heart" has been transformed into a playground of science, technology, and art.

The oldest garden in Prague, once part of an medieval orchard.

Underneath the city that invented pilsners are a series of historic tunnels that have been storing beer for centuries.