Historical Markers in
Mercer County, Illinois

Aledo, Illinois Dedicated in Memory of Spec 4 Timothy Joe McGreight Illinois Millitary School In the beginning Last Roll Call Lest We Forget Mercer County Soldiers' Monument Niles Hall / Transition Roosevelt Military Academy Roosevelt Military Academy / Rough Riders Roosevelt Military Academy World War II Memorial The Campus Today The Roosevelt Oak The Slab Veterans Memorial William and Vashti College Women's Veterans Memorial
The famous Route 66, one of the first highways in the U.S., passed through Illinois. The highway, which stretched from Chicago to Santa Monica, California, was a popular route for tourists and truckers and played an important role in American culture and history.
Illinois random facts