A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

A sprawling nature preserve harbors the world's only living dragons.

A real-life "hobbit" cave in Flores, Indonesia.

This sacred cave temple is home to thousands of bats and according to legend, a giant snake king.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

These 40,000-year-old stenciled hands are older than the famous cave art in France and Spain.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

Enter the world under the hill at this ancient UK burial chamber.

A remarkably well preserved tower dating all the way back to the Iron Age.

On this stunning Scottish island, you can walk in the footsteps of dinosaurs.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

Charles Babbage's proto-computer, painstakingly brought to life.

This hidden green space is the city's second largest conservatory.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

This 1920s Dutch barge is now a floating bookstore.

This dreamy street will transport you to wintertime in Victorian England.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

English antique dealers with a taste for the unusual.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

London's old-school healing garden.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

Spend the night in this formerly abandoned traditional Scottish village.