The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

"X" marks the spot of an echo chamber in the middle of a plaza.

An early-19th-century hotel with a past that is steeped in the Civil War.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

Performers, intricate sets, and a real speakeasy tell the story of the 18th Amendment.

The "last unrestored grand mansion of Savannah" is now a cramped, mouldering maze of antiques.

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

A hospital where antique dolls are given new life.

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

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

2300-year-old Roman road connecting the empire.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

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

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

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

An outsider art studio that created a piece of work so popular they had to turn mainstream.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

Where Venice's gondolas go for a tune-up.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.