This sinister Baroque entryway could lead you to a terrible fate.

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

This building has a giant piercing through one of its corners.

The intricate geometry inside this Baroque-style dome was designed to create "terror of the human soul."

Breathtaking and huge 430 year old maps of Italy.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

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

Inside this building is another country within Rome, a sovereign entity without a physical territory.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

A hospital where antique dolls are given new life.

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

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

A collection of objects supposedly singed by the hands of souls in purgatory.

Rome's first modern graffito is all that is left of a peaceful protest from the 1970s.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

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

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.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

An unremarkable wooden wheel built into the side of one of Rome's oldest hospitals was part of a policy to reduce infant exposure.

This hidden alley near the location of Rome's first theater was the site of a curious miracle.