The spectacular history of spectacles on display.

An independent cinema housed in a former pathological anatomy laboratory.

The last of Amsterdam's original sea level markers remaining in place.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

This former drainage pumping station was fundamental to the drainage of the Po delta.

A workshop-turned-museum showcasing the late sculptor's work.

A quiet museum preserves the extraordinary relics, processional treasures, and centuries-old traditions behind Catania's famous Feast of Saint Agatha.

A living example of historical stratification: a Roman amphitheater, a medieval farm, and modern town square.

A museum entirely dedicated to the evolution of mining lamps.

For two decades in the 13th century, the papacy operated from this palace in central Italy, which served as the site of the first—and longest—papal election conclave in history.

This tiny chapel atop a sea stack is dedicated to the patron saint of Ponza, Saint Silverius.

A 1930s defensive fortification designed to protect Italy from a German invasion.

These ruins on Mont Tantané dates back to the Iron Age, but there is limited evidence for why a village was built so far from water or other resources.

A medieval tower, dating back to the 12th century, lingers in the Roman countryside.

A twisted steel beam from the wreckage of the World Trade Center is the centerpiece of this memorial for those who died on September 11, 2001.

This palace offers an 18th-century European take on Chinese design and architecture.

This monastery set over a holy cave contains the oldest known painting of Saint Francis of Assisi.

This statue of the legendary Austrian composer is hidden in the center of an Italian town.

Hike along an abandoned railway up to a popular pilgrimage site.

See one of the earliest depictions of a Christian ceremony – with a woman at the center!

An elegant church is home to a remarkably detailed mosaic floor depicting the Garden of Eden.

This region of the Perugia municipality has an unforgettable name.

A floating bridge leaning on barges allows pedestrians to reach the historical center.

One of the largest squares in Europe contains an entire artificial island.