The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

The largest greenhouse in the world is home to over one million types of plants.

400-year-old garden, restored to beauty.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

Two gilded cherubs perched on a church bell tower have been reminding visitors of the finitude of life since 1760.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Though it may look like a businessman's lost luggage, this case suspended under a highway bridge is actually a contemporary art installation.

This artistic fountain display pays homage to this area's theatrical history.

Florentine Renaissance style building in Switzerland, home to the world's largest taxidermy Great White Shark.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

A historic observatory precariously perched at the "Top of Europe."

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

A stonemason's hilarious revenge came in the form of this peculiarly positioned gargoyle.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

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

A charming little museum founded by the designer of the Statue of Liberty.

This unusual piece of Renaissance art depicting the bodily horror of crucifixion and skin disease may have been inspired by fungus-induced hallucinations.

The birthplace of the builder of the Statue of Liberty is now a museum dedicated to his work.

This famous archeological mystery may be an ancient example of movable type.

Swarms of dainty flying insects swarm into the Petaloudes Valley to get busy.