Third time's a charm, or in this case, two testicles are.

Memorial to the 89 children killed during the NATO bombing of Serbia.

This seven-sided Romanesque chapel is regarded as the oldest building in Rovinj.

This saucy statue once caused outrage among locals.

Belgrade’s oldest restaurant has a rather unusual name.

This small bronze pyramid marks the center of Belgrade, but some say it is a Masonic symbol.

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

A NATO bombing took the lives of 16 civilians in 1999—the ruins remain in the center of Belgrade.

Four monuments dedicated to the legendary band in Serbia.

An eerie fountain commemorating the death of a boy that sparked a small war in the 19th century.

Architectural monsters are devouring this palace's every door and window.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The Pope’s secret escape route.

A hospital where antique dolls are given new life.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

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

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

The "Great Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

This curious, round temple is the oldest still-standing marble building in Rome.

This is the oldest Roman-made bridge in the city still existing in its original state.

This large, circular tomb is the final resting place of the first emperor of Rome.