This unattributed sculpture in Amsterdam is hiding in plain sight.

The deserted pirate-themed restaurant still entices explorers.

Less a museum than a bizarre fantasy world created by artists and engineers.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

This sculpture commemorates Edinburgh's sister city and their respective celebrity dogs.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

Neon artworks light up this dark Edinburgh tunnel.

This former train tunnel is filled with lines from a poem crafted by Robert Louis Stevenson.

This stately bank building hides a spectacular star-studded ceiling.

This extraordinary Viking artifact has traveled throughout the city.

The colorful stairs are made with marble from the world's major quarries.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

Anonymously sculpted and donated, these sculptures made from poetry books and pages are sprinkled around the city.

This obscure walkway links Edinburgh’s Old Town with one of the city's prime vantage points.

A great white whale sculpture now sits in the location where the remains of a prehistoric cetacean were found.

South of Bologna, a limestone grotto with a protruding waterfall and a floor full of cave pearls.

California's longest-running tourist attraction is a stump.

The beloved fantasy novelist is buried near a church containing a whimsical etched glass window full of Narnia favorites.

Rare and classic books by Black authors are the focus at this independent bookstore in a historic Atlanta neighborhood.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

The world's oldest bookshop still in operation.

Mirrored floors and arched shelves create the illusion of an infinite tunnel of books.

A cozy bookstore and coffee shop in the heart of Cartagena's Old City.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.