This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An ancient monastery, a locked room, and a mysterious book heist.

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

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

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

This ossuary is more than five centuries old and is heralded as one of the finest in Switzerland.

This medieval footbridge in the Swiss Alps is known to attract cliff-jumping daredevils.

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

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

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

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

The most impressive of Basel's three remaining city gates.

Swiss vineyards in a UNESCO heritage site.

Large Hadron Collider and the Birthplace of World Wide Web.

Today this former Nazi concentration camp stands as a poignant memorial to the victims of fascism, and a warning from history.

Once a farming community founded by the Italian survivors of an immigration scam, this colony is now a free camp and roadside attraction.

Australia's first and only museum dedicated exclusively to bones.

For nearly 50 years this airplane that crashed during World War II remained missing in the remote Australian backcountry.

Legends say that this small island was the final resting place of the Welsh saint of lovers.

A tiny village in Wales claims the name of a noble medieval hound slain for a crime he didn't commit.

The largest of only eight working transporter bridges left in the world.

The only medieval bridge in Britain with its defensive tower still in tact.

The world’s only museum dedicated to baked beans.

This 19th-century island fort built to protect against an invasion by sea.