Rock Island Arsenal
Army post located on Arsenal Island on the Mississippi River.
Each edition grades its towns against each other only.

With nothing inside Harmon, the list has 6 places within 40 miles. On the list: 3 museums, 2 gardens and a national historic site, among others. Allow a day for Rock Island Arsenal, 53 mi off.

Army post located on Arsenal Island on the Mississippi River.
The towns around it, and where to stay →
Head to the northeast for most of the 6 on the list.
Orange: Harmon. Numbers: the best-known places, matching the list below. © OpenStreetMap contributors
These 23 are within 60 miles, none in town.
Army post located on Arsenal Island on the Mississippi River.
Building and historic site in Illinois, United States.
Historic house museum in Grand Detour, Illinois, USA.
Botanical garden in the above historic district.
Two-room schoolhouse museum, moved from Chana, Illinois to Oregon, Illinois.
Historic building in Rock Island, Illinois, USA.
Set of botanical gardens in Rock Island, Illinois.
Ranked by how many people look them up, so the famous places lead and the local favorites follow.
Parks and trails in Harmon → · Harmon’s history →
Rock Island Arsenal: Robert A, Ryan, J. Ceronia, and Bruce A. Harms, Photographers, Public domain · Starved Rock State Park: Chris Light (talk), CC BY-SA 3.0 · BMO Center: SimLibrarian, CC0 · Black Hawk State Historic Site: Bill Whittaker (talk). Original uploader was Billwhittaker at English Wikipedia, CC BY-SA 3.0 · Ronald Reagan Boyhood Home National Historic Site: Teemu008 from Palatine, Illinois, CC BY-SA 2.0 · Egyptian Theatre, DeKalb: Andy McMurray, CC BY 2.5 · Figge Art Museum: Ctjf83, CC BY-SA 3.0 · Anderson Japanese Gardens: M. Readey, CC BY-SA 3.0 · Ellwood House: Paul R. Burley, CC0 · Putnam Museum: Ctjf83 of English Wikipedia (log), Public domain · John Deere House and Shop: IvoShandor, CC BY 2.5 · Apple River Fort: IvoShandor, CC BY-SA 3.0 · Vander Veer Botanical Park: David Wilson, CC BY 2.0 · Buffalo Bill Cody Homestead: Kepper66, CC BY-SA 3.0 · Chana School: Ben Jacobson (Kranar Drogin), CC BY 2.5 · Klehm Arboretum and Botanic Garden: KlehmArboretum, CC BY-SA 4.0 · Bickelhaupt Arboretum: Photo by Derek Ramsey (Ram-Man), CC BY-SA 2.5 · Black Hawk Museum and Lodge: Smallbones, CC0 · Don Opel Arboretum: Cillas, CC BY-SA 4.0 · Quad City Botanical Center: Ctjf83 at English Wikipedia, Public domain · Ryan Round Barn: Ibzumin, CC BY-SA 3.0