This small museum in a 17th-century building honors three iconic Scottish writers.

The heart of a Scottish legend had a centuries-long journey before reaching its final resting place.

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

An optical Illusion once believed to be an electrical phenomenon.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

This Scottish museum is the only one in the world to focus not on one religion but all of them.

This Manhattan museum houses one of the largest collections of Spanish art and manuscripts outside of Spain.

A legendary speakeasy bookstore returns from the brink.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

Tucked in the back of this amazing antique store is an important piece of medical history.

A terrific purveyor of natural history objects and curios.

One of the smallest bookstores on the planet.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

Dead weights honor the dead of Portugal's fishing industry.

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

The corpse bride of Portugal.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

The stunning interior of this Gothic church is covered in ornate gold details.

The world's oldest bookshop still in operation.

This small chapel is built of human bones and decorated with a golden skeleton.

A submerged village appears when dam levels drop.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.