The 43-mile route crosses through six islands with gorgeous views of the Seto Inland Sea.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

A museum dedicated to exhibiting remarkable outsider art.

Open-air museum with an elaborate sculpture garden, stretching for over 70,000 square-meters.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Beautiful waterfalls grace a canyon visibly torn by a violent tornado.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

This sublime architectural marvel is a rare example of an expressionist church.

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

Gorgeous purple flowers drape from the world's largest blossoming plant.

This charming wooden church was disassembled and moved not once but twice before settling in this Prague garden.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

The world's largest squirrel statue clutches a pecan bigger than your head.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

This hulking behemoth is actually five interconnected towers built in the 1960s.

A massive wintry wall of snow up to 66 feet tall flanks a highway through Japan's mountains.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

A bike train runs along a disused railway line through the tranquil French countryside.

Its front wall is striped with a menagerie of fantastic beasts and magnificent monsters.

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

The world's newest astronomical clock is also its most accurate.

Why walk on this historical site when you can zoom down instead?