Rome’s legendary peephole vista is also a former Crusader stronghold.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A sculpture serving as an homage to Pope John Paul II.

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

If Hello Kitty were Mickey Mouse, this would be Disneyland.

A whimsical bridge adorned with decorative dragons.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

Where the lovelorn find a home for their sentimental keepsakes.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

Gargoyle head that brings good luck.

An ancient knight and a symbol of the city's freedom.

This virtually windowless mass of smooth concrete is the only Catholic church in the city.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Drink wine handed out through a window as part of an age-old tradition.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

Old batteries and frog skeletons reside in this lakeside monument to Alessandro Volta.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

Abandoned medieval hill town.

Ernest Hemingway was the first to sign this colorful wall covered in thousands of celebrity signatures.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

A secret hatch containing two parchments was discovered in this statue over 40 years after its installation.