Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

A winery built on the site of a Gallo-Roman estate uses historical tools to recreate ancient vintages.

Caves that can't seem to quit producing the remains of prehistoric humans.

Home to some of the oldest hominid fossils ever found.

The tallest residential building in Africa is an unsettling Brutalist monolith.

Largest cave system in Africa.

The small cliffside monastery known as the Tiger's Nest is said to be the meditation site of an eighth-century Buddhist master.

Mirrors and glass shards cover every inch of this arrestingly beautiful mosque.

This beautiful system of tunnels built into natural rock serves as a centuries old plumbing system.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

World's largest film studio, where visitors tour the decaying sets that litter the harsh desert environment.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

The longest hedge maze in the world.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

A marvel of Byzantine engineering under the streets of Istanbul.

This Ecuadorian cemetery is home to a jaw-dropping topiary wonderland.

A dangling church built over a Colombian gorge.

Real bones which are said to have belonged to a Polish dragon.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

Residential building on the Regents Canal is a breeding ground for creativity and innovation.

A single tree's 2,800 aerial roots give the appearance of a complete forest.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

A haunting collection of the vanished and disappearing natural world.