Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

The eclectic seaside sanctuary caters to a rather fowl crowd.

The medieval home is still engraved with the symbol of the profession, an eye flanked by two axes.

A long-buried ancient ruin unearthed right in the middle of the city.

Turntable anonymously received orphans, alms, and groceries.

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

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Colorful and chaotic stacked hotel in North Holland.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.