One of the highest emergency huts in the world has been waiting almost a century to give imperiled climbers a place to lie down.

Abbey built on the ruins of Roman catacombs.

A tower-like theater in the Swiss Alps built to withstand the high winds and avalanches of the mountain pass.

This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

A symbol of friendship between the mountainous regions of Switzerland and Bhutan.

Medieval irrigation channels built into the sides of mountains provided Valais with water for hundreds of years.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

Enormous, fluffy dogs frolic around this museum dedicated to a legendary Saint Bernard.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

A historic observatory precariously perched at the "Top of Europe."

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.