Scars of this building's past life as a violent prison still cover its walls.

A man's head is enshrined beneath a statue near the first building constructed for the modern Olympic Games.

Belgium’s famous peeing statue has worn many hats (and coats, and pants), which are on display at this small museum.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.

One of the best-preserved medieval streets in Europe.

This slumbering beast honors the Bavarian soldiers who died in Greece during a 19th-century typhoid outbreak.

A staircase made of gravestones leads up to this church built into a giant rock.

The historic building has preserved human organs, unusual hexagrams, and scars from a political assassination.

Giant marble phalluses on the sacred island of antiquity.

Designed as a labyrinth, this subterranean prison was crafted without bars or doors.

Medieval torture techniques with a modern conscience.

In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

A massive marble foot is tucked away in a small alley near the Pantheon.

The former home of an Italian artist is now a shrine to his ambitious works.

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

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

A magnificent waterfall is also home to the remains of a Roman hydraulic engineering system.

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

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.

The Pope’s secret escape route.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

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

Rome's semi-secret peephole vista is also a former Crusader stronghold.

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