Geology

Most-visited and most-photographed slot canyon in the American Southwest.

Turnip-shaped island just off the Michigan shore in Lake Huron.

British Empire's last territorial expansion, claimed by four countries.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

Highly spherical boulders on the shores of New Zealand.

This sacred cavern, 400 feet deep, is home to millions of bats and an ancient burial ground.

Controversial site of what could be Europe's first pyramid.

Home inspired by the crystal rock formation of the Emerald Estates.

Huge hole looks down onto an underground beach populated with sea lions.

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

At 8,000 feet, the world's highest tea estate draws visitors for both its products and its panoramic views.

An ancient stone fortress considered by many to be the eighth wonder of the world.

Largest site of dinosaur footprints ever found includes more than 5,000 tracks.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

One of the most unusual geological features, recognizable from a dozen hit movies.

Large rock high in the mountains of Yunnan that is naturally shaped like a chair, complete with arms.

Rocky Atlantic beach home to a stunning stone arch.

Singing sand that stands as the final remains of an ancient lake.