This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This medieval castle was reconstructed by Carlo Scarpa.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

It’s said this crypt was the setting for the tragic finale of the Shakespeare play.

Pilgrimage site for star-crossed lovers.

An unusual stroll through gentlemen's erotica demonstrates that pornography is timeless.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Macabre astrological automaton clock dating to the late 1400s.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

This strange statue depicts a young boy's body with an adult Mozart's head and a single wing.

A peculiar samurai statue overlooks the center of Brno.

This hanging crocodile is thought to be the "dragon" that once plagued a Czech city.

Of all the houses that grace this neighborhood, only one is a testament to surreal architecture.

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

A former top secret nuclear fallout shelter now operates like a hotel stuck in the Cold War.

A cheeky architectural easter egg.

Mummified monks and the accidentally interred, in a 17th-century crypt.

Europe's second largest ossuary wasn't discovered until 2001.