| Name | Styles | Significance | Periods |
|---|
Forest City Public Library (E. I St. and Clark) | Romanesque | architecture, social history | 1900-1924, 1875-1899 |
Pilot Knob State Park, Amphitheater (Area 4) (S of jct. of IA 9 and IA 332) | | landscape architecture, entertainment, recreation, politics, government, social history, conservation | 1925-1949 |
Pilot Knob State Park, Observation Tower (Area 2) (S of jct. of IA 9 and IA 332) | | architecture, politics, government, entertainment, recreation, social history, conservation, landscape architecture | 1925-1949 |
Pilot Knob State Park, Picnic Shelter (Area 3) (S of Jct. of IA 9 and IA 332) | | architecture, landscape architecture, politics, government, entertainment, recreation, social history, conservation | 1925-1949 |
Pilot Knob State Park, Portals (Area 5a) (S of jct. of IA 9 and IA 332) | | social history, conservation, entertainment, recreation, politics, government, landscape architecture | 1925-1949 |
Pilot Knob State Park, Trail Area (Area 6a - 6c) (S of jct. of IA 9 and IA 332) | | conservation, social history, entertainment, recreation, landscape architecture, politics, government | 1925-1949 |
Pilot Knob State Park: Portals in Area 5b (Off IA 9 SE of Forest City,y Pilot Knob State Park) | | conservation, landscape architecture, social history, politics, government, entertainment, recreation | 1925-1949 |