This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

Eighty million natural history specimens call this gargantuan museum home.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

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

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

A perfectly preserved hill village where the buildings are painted like white lace.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

The European towns of Brașov and Râșnov each have proud signs reminiscent of the Hollywood sign.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

A striking public sculpture representing the period of martial law in Communist Poland.

The silly symbol for an underground protest group is now scattered around the city.

The site of the first battle of World War II.

An underground city of salt.

This Stone Age solar temple aligns with the sun on each equinox and solstice.

This micro-nation may be some sort of prank, but its constitution sure seems official.

3,000 market stands in five former Zeppelin hangars.

Where commuters walk through remnants of an ancient Greek necropolis.

Monasteries on rock pillars, once accessible only by frayed ropes.

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

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

Tiny communists hammer away on the Olomouc Astronomical Clock.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

A mocking tribute to the past and modern leadership of Prague.