Glasgow’s piece of the patron saint of love.

A saintly relic hidden in a Prague church basement.

The relics are stored in a silver reliquary, where they can be seen through glass.

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

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

Climb this overlooked gem's spiral staircase and you'll be rewarded with spectacular views of Glasgow.

A scattered trail of street art adds a pop of color to the city's stark structures.

This former train tunnel is filled with lines from a poem crafted by Robert Louis Stevenson.

A familiar otherworldly creature guards this 12th-century Scottish abbey.

These millennia-old murals once covered the walls of residential complexes across the ancient city.

This macabre masterpiece of a mural is one of Francisco Goya's "Black Paintings."

An otherworldly, fossil-rich cobble beach holds Viking graves, cairns, and other remains.

These strikingly colorful paintings were created by a mysterious Mesoamerican civilization.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

These unknown Bronze Age earthworks are believed to be ancient burial mounds.

A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

A medieval abbey featured on 'Game of Thrones' that dates back to the 12th-century.

A 19th-century funicular railway shuttles visitors up this surprising sea cliff to one of the world's largest camera obscuras.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

These haunting ruins belong to an ancient village that once had one hell of a view.