The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

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

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Strange rock formations tower above the river that snakes through this enchanting Icelandic canyon.

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

This massive redwood tree has a hole in the base big enough to drive through.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

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

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

Mile-long cave system near Great Smoky Mountains.

A massive sea stack famous for its appearance in The Goonies.

An emerald-green grotto just a short trip from Austin.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The rocks in this arid basin leave trails of movement behind them.

Ancient pueblos built into the base of a natural canyon wall.

16,500-acre ranch filled with American heritage, geological wonders, and a giant pile of tires is the crown jewel of an intriguing tug-of-war.

The longest living non-clonal organisms on Earth.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

Named after a bandit and the star of several Hollywood prehistoric landscapes, these sandstone formations are a historical part of the Los Angeles natural landscape.

Beautiful natural falls where Satan once ruined a pot of beans.

A forest wonderland caused by Burlington, Vermont's aggressive southwestern winds.