Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This replica Viking village was created for a film that was never shot and is now open to visitors.

The ceiling of Prohodna Cave in northern Bulgaria affords a peek at the sky via two deity-sized-eye-shaped holes.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

65 million-year-old chalk outcroppings mark the end of the Jurassic Coast.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

This one-time health resort was used by aristocrats around the world.

Largest cave system in Africa.

Remnants of an exploded schooner and wrecked submarines form a breakwater.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.