This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The celebrated eyesore created by starry-eyed sweethearts.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

Saintly bones pressed into a wax effigy of a Catholic superstar.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

The famous winding walk at Chartres is surrounded in mystery and myth.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

Recently restored menagerie of Victorian-era beasts.

One of Ireland's most infamous prisons for rebels including men, women and children.

Northern Ireland's Brobdingnagian stepping stones.

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

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

The most loyal of little dogs, or a Victorian era publicity stunt?

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

Famously misunderstood wonder of the ancient world

Eighty million natural history specimens call this gargantuan museum home.

A miniature village mimics the surrounding buildings so well it includes itself.

A massive sea stack famous for its appearance in The Goonies.

Two massive rock outcroppings on the Oregon coastline.

Portlandia is the second-largest copper repoussé statue in the United States.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."