A spectacular hidden beach in Ireland has the dark, disturbing nickname of "Murder Hole Beach."

Once the longest bridge in Ireland, this rusting span sits abandoned and overrun by nature.

A corkscrew-shaped barn in Ireland.

A moody and picturesque riverside ruin overgrown with vegetation.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

Temple complex that once housed the famous statue of Nike.

The rocky remains of an ancient Greek forest.

This Turkish cave boasts some rather bizarre associations with the King of Mount Olympus.

According to legend, this cavern holds the passage that Persephone used to travel to and from the underworld.

This 11th-century Greek monastery has renowned mosaics and relics of a brutal past.

This seaside sanctuary was once one of the most important religious sites for women in ancient Greece.

An ambiguous ambience emanates from this centuries old leprosy quarantine.

Traversing these canyons, visitors can take in stunning views and glimpses of the region's history.

Across the islands, baked goods, sauces, and much more are for sale 24/7.

This coffee shop lies hidden beneath a historic church.

This fascinating abbey is considered the oldest monastery in the region.

The only structure in a remote mountain pass, these colorful cubes are visible from miles away.

This former factory has been transformed into a technicolor wonderland, where dozens of local artists have collaborated to create a real choose-your-own-adventure experience.

The location of the Bridge of Death and the Gorge of Eternal Peril in "Monty Python and the Holy Grail."

Exact replica of the ancient monument, but much, much lighter.

This restored house built from a Sears kit in the 1930s is a physical remnant of FDR's New Deal following the Great Depression.

This eclectic sculpture garden in Brooklyn, home to a bizarre collection of art, was once a run-down junkyard.

Since it formed millions of years ago, this cave system has been a sacred burial ground, a Prohibition-era speakeasy, and the center of an amusement park.

This impressive midden of scallop shells apparently all comes from a single fishing company.