Where the polar bear watches over everything, and every drink is a double.

This infamous prison has a store where you can buy goods crafted by incarcerated people.

Julia Morgan's Moorish-Gothic labyrinth of fountains, trees, natural light and Oakland's notable dead.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

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

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

This antique shop specializes in the history of print and design.

An essential stop before plundering, BYO Cutlass.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

A stunning Victorian abbey and walled garden on a lakefront.

A moody and picturesque riverside ruin overgrown with vegetation.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

A trail of "Game of Thrones"-themed doors carved from fallen trees from the iconic Dark Hedges.

The atmospheric road was never meant to be so creepy.

Northern Ireland's Brobdingnagian stepping stones.

This tiny train shuttles passengers to one of Northern Ireland's most spectacular sights.

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

You can see three Irish counties from this Neolithic hillside fort, once the seat of the Kingdom of Ailech.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

The ruins of a medieval monastery named after a type of tree.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

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

A 150-year-old steam locomotive crosses the southern half of the island daily.