A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

Overlooking the burial ground is a tower designed to prevent thieves from snatching the recently deceased.

The U.K.'s first underground railway line is now a lively thoroughfare for runners and cyclists.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

A restaurant with an extensive Irish whiskey bar also has several first editions of famous works by Irish authors.

The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

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

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

A man-made island in scenic San Francisco Bay.

A 140-year-old castle with underground caves hidden in San Francisco.

An artsy hidden staircase leads to breathtaking views of San Francisco.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A psychedelic labyrinth on the San Francisco bay.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

America's oldest Italian restaurant is a San Francisco institution.