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

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

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

The yawning maw of this pagan visage is said to bite off the hands of liars.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

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

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

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

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

If you want to talk to the Pope you will have to stare down this surreal vision of Jesus rising from a nuclear hell.

Breathtaking and huge 430 year old maps of Italy.

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

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

A hike outside of the town of Zuun Mod will take visitors to a monastery complex steeped in Mongolian history.

A Buddhist monastery tucked away in the mountains of Colorado.

A technicolor place of worship for Elevationists.

An off-the-beaten-path monastery in the northern hills of Ulaanbaatar.

See 150 million-year-old dinosaur tracks and bones dating back to the Jurassic period.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

The palatial McDonald's that inspired Wesley Willis.

One of Chicago's last seafood smokehouses perfects a dying breed of fishcraft.

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

Cool down and fill up after visiting Teotihuacán at this bar and restaurant in a deep, underground cave.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.