Executed in 1401, Exhumed in 1878, Stolen in 2010.

Striking occult iconography on a medieval German church.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

A slice of central Asia in the middle of Berlin.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

The earliest known map to show America, discovered by accident at a Paris bookshop.

One of downtown Berlin's last reminders of its Communist past.

A grassy pyramid named after a French battle.

The place where Czar Peter I of Russia resided in 1697 during his Grand Embassy.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

A collection of biblical memorabilia.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

This basement museum explores the art and artistry of fascism.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

The attic of a four-century-old canal house hides a clandestine church.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A beautifully eclectic mix of architectural styles.

Romans built the world's tallest artificial waterfall in 271 BC.

A 16th-century horror show built in a lovely Italian garden.