Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

A Rocky Mountain city provides a happy ending for a pinto pony and his Brobdingnagian red chair.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Time has been frozen at this station since the bombing in 1980—or so it was believed.

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

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

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

A striking memorial recalls thousands of Bolognese men and women killed fighting fascists in World War II.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

Stuck in the arcade of Casa Isolani are three arrows of mysterious origins.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

The last Victorian market in Belfast.

The statue honors a beloved bird that once roamed St. George's Market.

Northern Ireland's Brobdingnagian stepping stones.

A trail of "Game of Thrones"-themed doors carved from fallen trees from the iconic Dark Hedges.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

These murals stand as reminders to the troubled history of this Northern Ireland city.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

These engineering masterpieces are a dominant feature of the Belfast skyline.

A museum marks and documents the site of the Titanic's launch.