A physical reminder of Earth's ancient past, this rock results from the photosynthetic processes of some of the oldest forms of life.

A small welcome symbol for visitors to Ann Arbor.

These statues pay homage to the "green corridor" of parks and wetlands.

This quaint stretch of road is the final resting place for hundreds of America's four-legged veterans.

Once the extravagant escape of the Ford family, this enigmatic ruin now stands as a haunting reminder of its former glory.

This early 20th-century former train station’s unusual roof shape earned it a rather witchy name.

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

A world-class observatory in the California desert.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Meet manatees face-to-face at this zoo for native species.

This small museum gives visitors a chance to soak up the history of the "sponge capital of the world."

No one knows how or why this painting appeared to produce crystallized tears.

Largest tulip festival in America, includes fireworks, a parade, and a carnival.

The park is home to the United States's only still-operating Dutch windmill.

An unlikely beach paradise of giant sand dunes lies between two lakes just a few minutes from Michigan's cherry country.

This tribute to a local man towers within a quaint lakeside park.

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

A humble ode to the heroic air rescue efforts of the United States Coast Guard serving on the Great Lakes.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

This Native American cemetery features decades-old spirit house hidden behind pine trees and moss.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

Two dozen rescued bears roam (mostly) free at the largest bear ranch in the U.S.

Legs Inn provides Polish food, a cornucopia of Odawa artwork, wood carvings, and mounted deer heads.

Island where motor vehicles are banned -- home to the only carless highway in the United States.