Illinois Centennial Memorial Column, Logan Square Monument or Illinois Centennial Monument is a public monument in the Logan Square community area and the Chicago Landmark and National Register of Historic Places-listed Logan Square Boulevards District. Built in 1918 to commemorate the 100th anniversary of Illinois' statehood, the monument, designed by Henry Bacon, famed architect of the Lincoln Memorial in Washington, DC, is a single 70-foot (21 m) tall marble Doric column topped by an eagle, in reference to the Flag of Illinois. Reliefs surrounding the base depict figures of Native Americans, explorers, farmers and laborers intended to show the great changes experienced during the state's 1st century.