Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Elaborate tile work in this railway station tells the story of Portugal.

A 246-foot-high revolving restaurant rises unexpectedly from a forested Finnish hilltop.

These Finnish rapids have been attracting tourists for over a hundred years and are now released with the push of a button.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Featuring Zürich's only authentic 14th-century plague doctor's uniform!

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Historic slum of Tartu.

The secret cells in the basement of the KGB's Estonian "Grey House" have been preserved as a grim Cold War museum.

First point in the Struve Geodetic Arc, a 19th century undertaking to measure the Earth's size and shape.

The labyrinthine home of the National Archives of Estonia is an experimental blend of architecture, art, and history.

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

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

A subterranean house of worship carved right out of the bedrock.

An abstract monument to a symphonic composer.

No matter how many times this community-run sauna gets destroyed, it always rises from the ashes.

Every summer, an open-air swimming pool appears at the base of a Finnish city's beloved winter attraction.

The bears of Bern have been a city highlight for over 500 years.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

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