Stockholm's narrowest alley is barely over two feet wide.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Sweden's "good old days" painstakingly re-created in a model village.

Stockholm's deepest subway station is also a stunning ecological wonder.

The library's graceful rotunda is like a bibliophile's temple.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

A 15th-century monumental Latin inscription on this house celebrates Lorenzo Manilio's love for Rome.

A large replica of a monumental Roman inscription is located on the side of this museum.

The Italian revolutionary's legendary wife is portrayed on horseback waving a gun and holding her child in this memorial on the Janiculum.

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

This medieval church in Rome was almost destroyed following a terrorist attack in 1993.

These ruins of a Phoenician sanctuary in Sicily have a dark history.

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

This small Roman arch was transformed into a dwelling by the founder of the Trinitarian Order.

Believed to be the remains of the lost Temple of Minerva, this nymphaeum has been known by its misnomer to this day.

This small church was constructed over the ruins of three temples dating to the Roman Republic.

A brutalist gem towering over the heart of Milan.

One of the tallest bell towers in Italy plays a particular melody at just two times each day.

According to local folklore, this Roman sepulcher was once a throne for the Devil.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

This statue is the only female representation of Rome's "talking statues."

This sturdy, circular stronghold served as one of the forts that protected the Venetian Lagoon.