The largest source of fossilized insects anywhere.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

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

There's more contention than one might expect from cherry pie pans.

Watch the ships come in on Michigan's 210 ft. high observation deck in Sault Ste. Marie.

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

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

This shallow cave got its name from copious amount of human bones found inside.

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