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

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

A beloved local artist has been honored with this statue of a man emerging from a toilet.

The world's biggest floating museum in Gothenburg, Sweden.

A 200-year-old collection of medical paraphernalia in a historic house.

The lighthouse is on a island which is connected to another island, which is connected to another island, which is connected to one of the largest islands in the world.

The longest and tallest aqueduct in Britain can actually be sailed across.

This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

One of the earliest large-scale "hyper" roofs in the U.K. is now a derelict roadside attraction.

These crude contraptions were used to aid in the mining of lead, silver and gold.

This poignant WWI memorial looks like a lighthouse 100 miles from the sea.

The longest stone bridge in England has an impressive history that dates back over 700 years.

This iconic Peak District ridge was once one of the busiest roads in medieval Britain.

This lovely ancestral home inspired the author D.H. Lawrence, and features a tunnel made out of a living willow.

A gorge full of caverns where early humans lived alongside cave hyenas, giant mammoths and wooly rhinoceroses.

This beautiful "lagoon" is actually a toxic soup filled with cars, carcasses, and trash. When warnings couldn't stop people from going for a dip, the town dyed it black.

This industrial gem was one of the earliest examples of a metal-framed building.

A late 18th-century jail.

There are no crying babies in this neck of the woods.

One of the smallest bookstores on the planet.

Step back in time at this 19th-century kiosk.

Eat the ultimate iteration of Portugal's most beloved pastry.

After the owner of this Art Nouveau home died, it was turned into a museum displaying a lifetime dedicated to art.