A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

Research station devoted to mysterious floating lights seen in a Norwegian valley.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

This still-celebrated home was a radical architectural experiment in 3D De Stijl.

The world's longest wildlife overpass provides Hilversum's critters with a safe alternative to trying their luck on the roadway.

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.