An actual piece of the Moon, brought down to Earth by Apollo 15.

This exoskeleton was gifted to Rutgers University by Japan for its role in educating some of the first Japanese citizens to study outside the country.

A human attendant once directed car traffic from this structure before automated stoplights.

This exhibit allows visitors to wander through the interior of a replica Ice Age glacial cave.

These constructed wetlands naturally filter millions of gallons of treated wastewater every day.

This statue commemorates the importance of hat manufacturing to Danbury, once known as the "Hat City of the World."

This sculpture commemorates the first instance of an American president pardoning a turkey.

Celebrating an art form with a collection of puppets from all over the world.

This museum explores the history and development of dentistry and dental technology in Michigan.

This monument commemorates the only American soldiers to have directly fought Russians during World War I.

The remains of a failed canal can be found in several towns near Lake St. Clair and is known historically as "Mason's Folly."

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

The way these carnivorous dinosaurs are posed is an homage to a classic work of paleoart.

These gardens recreate unique and endangered Michigan habitats.

The stone sculpture of an Ottoman soldier is an homage to a lost Providence landmark.

A small museum packed with specimens from important fossil sites and minerals from historical pegmatite quarries.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

The plants form a living library and laboratory for researchers and students at Michigan State University.

This limestone outcropping was once a ceremonial site for ancient Native Americans.

Hidden behind a Target are pillows of cooled lava that formed at the bottom of a deep lake in the Mesozoic Era.

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

This exhibit is one of the largest and most well-preserved collections of Jurassic-era trackways in the United States.

Its floors are marked by colorful cues depicting Michigan's native fauna.

Now home to hardy plants, these sand and gravel dunes once held back a massive prehistoric lake.