A sprawling collection of books and manuscripts about ancient Greece that would have put their famed libraries to shame.

A museum dedicated to secret surveillance.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

This famous archeological mystery may be an ancient example of movable type.

After much poking and prodding, this island is decidedly not a magnetic anomaly, but it sure is pretty.

Homage to the local produce now serves as a car dealer.

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

A relic of World War I that now exist as a piece of public art.

Native Australian lizards inhabit this garden celebrating Sydney and its sister city in China.

This striking sculpture of Icarus honors Greece's fallen flyers.

An often overlooked ancient site in downtown Athens with substantial history (and nature).

The only ancient site that remains on the south bank of the sacred Ilissos river.

Gladiators once walked this ancient, subterranean passage.

A Baroque mansion with ties to legendary magicians and alchemists.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

A bronze woman in a stylized dress honors a courageous politician.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

A scene from one of Hungary's most famous novels.

A giant glider—designed by the father of the Rubik's Cube's designer—now soars within a shopping mall.

The largest statue of this convex, homogeneous object with just one stable and one unstable equilibrium point.

A diminutive statue that was inspired by the sculptor's own daughter.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.