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

This once-derelict building is now one of the most beautiful bookstores in the world.

A small island with shimmering pink sands, home to loggerhead turtles and rare plants.

The oldest olive tree in Greece has been bearing fruit for at least 2,000 years.

Head underground and take a tour of the city's working sewer system, and see the underground river Senne, which defined Brussels for centuries before being covered in the 19th century.

This modern arts center is built around a gem of late-Baroque architecture.

Drink among marionettes at this pub inside a historic puppet theater.

The Devil’s own choice when he needs a drink in Brussels.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

A student driver's nightmare.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

This 1920s Dutch barge is now a floating bookstore.

The final resting place to 300 Victorian-era pets hides inside the city park.

The secret wartime bunker built on the platforms of an abandoned Tube station.

Eighty million natural history specimens call this gargantuan museum home.

England's oldest surviving hedge maze has been confusing visitors for over 300 years.

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

This secluded walkway overlooks a magnificently wild London green space.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

A little slice of Japan and its aesthetics in London's Holland Park.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

Classic game cookery takes center stage at what's widely considered London's oldest restaurant.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.