A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

A huge enchanting public park just outside the ancient walls of Rome.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

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

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.

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

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

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

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

A 14th century bridge built as a fortress, where the devil lurks on one of its towers.

There has been an astronomical clock on this spot since the 14th century.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This ancient theater was once the home of fierce gladiatorial battles.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.