Watch the ships come in on Michigan's 210 ft. high observation deck in Sault Ste. Marie.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

This ancient market is often referred to as the oldest shopping mall in the world.

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

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

Rome's ancient Etruscan rival, now a park full of ruins.

One of the most important yet well-hidden museums dedicated to the history of medicine.

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

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

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

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

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

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

Massachusetts memorial to murder victim Elizabeth Short near the spot where she was born.

This ultra-modern burial building would have stacked the dead like a giant filing cabinet.

David Sedaris called it "The greatest shop in the world."

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

A small window on Via Piella offers a lovely and rare peek at Bologna's lost canals.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

Eighteen mummies have stood guard behind the altar of this tiny church since 1833.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.