A house carved into a rock in the 1940s.

Dig for your own trilobites in this goldmine of invertebrates.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

This geothermal hot spring hides beneath a slowly growing mineral dome.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

Reason for Michigan's potential diamond mine.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

These sprawling mines once served as a source of plaster and today serve as a storage facility.

Detroit housing collective working to create an "environment for revolutionary change."

Over a thousand feet beneath the Detroit streets is a subterranean metropolis few are allowed to enter.

The pieces in this sculpture garden are made from demolished buildings that were once landmarks of Motor City.

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

Collective made up of artists, musicians, and activists.

This sprawling bookstore spans four floors and has more than a million books in stock.

This lovely public park has an intriguing past and unique wooden bridges made of concrete.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

The only surviving prototype for Buckminster Fuller's house of the future.

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