Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

An Art Nouveau gem hides beneath the layers of city grime obscuring this once-magnificent building.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

This famous city eluded concrete detection until the early 2000's.

Roman ruins top white travertine terraces formed by ancient hot springs.

This postmodern apartment block was designed to be a vertical neighborhood.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

Feast on cuttlefish ink-stained paella by the beach.

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

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Crumbling necropolis set high above Fez.

The courtyard of this small Marinid madrasa is a dazzling example of intricate Islamic architecture.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

A black cat protests the City Guild in Riga's Old Town.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

A pair of connected skyscrapers form this symbolic gateway.

Structure built from the skulls of vanquished foes.

The site of a legendary 14th-century battle and a controversial 20th-century speech.

A 11-foot former president stands on a Kosovo street that also bears his name.

A sculpture of the beloved author surrounded by characters from his fairy tales.

Admire dozens of life-size animals made from old scrap metal, nuts, screws, and valves.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.