Time has been frozen at this station since the bombing in 1980—or so it was believed.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

This building features dozens of faces along its facade, although one is a bit chilling.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

A poignant mural honors the heroic teenage non-conformists who took on the Nazis and paid the ultimate price.

This small condiment museum makes all manner of mustards with a 200-year-old mill.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

Stone Age solar temple is aligned with the sun on each equinox and solstice.

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

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

This unique building in the main square stands out among the city's typically Baroque architecture.

This 50-foot-deep sinkhole created in the 14th century is home to rare plants and fungi.

The site where a plot to assassinate Hitler was planned—and its conspirators were executed—is now a powerful memorial to the German resistance during World War II.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

This natural hill rose another 130 feet from the debris and rubble added after World War II.

This old wooden funicular railway leads to a cemetery in the forest.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

Revitalization efforts converted a former U.S. military heliport into a sprawling urban park.

These caves secretly held national treasures during World War II.

An abandoned Byzantine fortress and notorious prison.