A rare example of a medieval house in Rome adorned with a melancholic inscription.

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

This fountain is dedicated to the workers who perished constructing the Fréjus Rail Tunnel.

One of Rome's most picturesque and original bridges was also a popular choice for Grand Tour artists.

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

Once home to one of the oldest banks in the world, this building is also where Marco Polo's famous travelogue was written.

This gallery commissioned by Cardinal Spada is known for its magnificent optical illusion.

The sacristy of this church contains remains and relics of members of the Aragonese royal family.

Inside features a display of how artistic crucifixes transformed throughout the centuries.

The oldest-known example of a historic architectural style recognized by UNESCO.

This hermitage celebrates the legend of Emperor Constantine's healing from leprosy.

What appears to be an ancient Roman temple is actually a Catholic church.

This war memorial holds the remains of around 20,000 World War I soldiers from both sides of the conflict.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

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

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

Hidden within this iconic mountain are a set of World War II bunkers once used by German forces.

This uniquely designed bridge served as the city gate for Comacchio.