Europe’s oldest natural human mummy.

Inside this store, a mysterious statue draws visitors from the world over.

The first permanent memorial to a unique secret weapon of World War II.

The unusual burial monument of Arizona's first governor.

A house carved into a rock in the 1940s.

A jaw-dropping brutalist space church seems to have crash-landed in the middle of America.

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

This remarkable collection devoted to the study of fish includes 1 million preserved specimens from all around the world.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

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

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

A cablecar-station-turned-revolving restaurant with 360-degree views of the Swiss skyline.

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

Caves famous for the dragon-slaying saint who lived there.

The fairy tale castle of the "fairy-tale king."

An Austrian house of bones filled with hundreds of intricately painted skulls.

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

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

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

A geological mystery on Camelback Mountain.

Europe's largest prehistoric mound – burial site of a legendary king?

Famously misunderstood wonder of the ancient world

The granddaddy of English geoglyphs dates back to the late Bronze Age.