Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

This strange statue features a bust of the famous composer plopped atop a woman's body.

The world's oldest known salt mine.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

A whimsical cottage from the 1300s with a preserved Victorian-era post office inside.

The London statue that imitates passersby.

Don't be fooled by this fake medieval facade even if it is almost 300 years old.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

Two plaques commemorate the site of Shakespeare's first theatre.

England's only square-dimension hill horse was built to celebrate Queen Victoria's coronation.

This garden houses the remains of the ancient Greek port of Marseille.

The fine fabric handwoven at Biltmore Industries was once coveted around the world.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

This giant iron playfully pays tribute to an early 20th-century architectural trend.

This bridge was constructed from the rubble of the infamous Bastille.

This 14th century wine cellar is home to the oldest barrel-stored wine in the world.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.