The Centennial Mall

Historical marker location:

1247 E Siena Heights Dr, Adrian, Michigan

( Marker can be reached from East Siena Heights Drive, 0.2 miles east of Addison Street, on the right when traveling west.)

Marker installed: 2019

Michigan is the only state in the United States that consists of two peninsulas. The Upper Peninsula (UP) and Lower Peninsula (LP) are connected by the five-mile-long Mackinac Bridge, which is one of the longest suspension bridges in the world.