An underground magnet for ever-changing street art.

A couple turned their front yard into an artistic masterpiece.

This statue of a Hindu cosmic dancer at CERN is a metaphor for modern physics.

The World Wide Web was created in this nondescript corridor at CERN.

Explore the subjective dream of a hotel.

This small museum displays a collection of outsider art and scale models of past "treatments" for mental illness.

A tiny rural community in Switzerland was home to one of history's most shocking murders, and led to the banning of Absinthe for nearly a century.

Abbey built on the ruins of Roman catacombs.

The world's longest and deepest train tunnel.

Extensive private collection of authentic Medieval devices used for human torture and execution.

This secret Swiss fortress is disguised as a harmless pink house, complete with fake windows.

The last woman executed for witchcraft in Europe is remembered in this Swiss museum.

This simple apartment may have inspired some of the most important theories in the history of science.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

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

A Swiss board game museum housed inside a picture-perfect castle.

A mythically themed self-built sculpture park.

World's largest permanent maze made of 18,000 conifers.

A once-thriving hotel in the Swiss Alps couldn't compete with climate change.

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

The steepest classic funicular in the world glides along a dizzying incline.

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

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

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