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

Around Altona, the places to visit include 6 museums, 2 zoos & aquariums and 2 gardens. Nothing on our list is inside Altona; the 11 places to visit are within 40 miles. A typical year brings about 77K visitors to Figge Art Museum. Dickson Mounds is worth a day, 53 mi from the centre.

Army post located on Arsenal Island on the Mississippi River.
The towns around it, and where to stay →
Head to the northwest for most of the 11 on the list.
Orange: Altona. Numbers: the best-known places, matching the list below. © OpenStreetMap contributors
Nothing is inside Altona itself; these 20 are within 60 miles.
Army post located on Arsenal Island on the Mississippi River.
Botanical garden in the above historic district.
Historic house in Metamora, Woodford County, Illinois.
Historic building in Rock Island, Illinois, USA.
Botanical garden and conservatory in Peoria, Illinois.
Historic former courthouse in Woodford County, Illinois.
Listed on the National Register of Historic Places in Muscatine County.
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.
Rock Island Arsenal: Robert A, Ryan, J. Ceronia, and Bruce A. Harms, Photographers, Public domain · Dickson Mounds: MattHucke, CC BY-SA 3.0 · Black Hawk State Historic Site: Bill Whittaker (talk). Original uploader was Billwhittaker at English Wikipedia, CC BY-SA 3.0 · Figge Art Museum: Ctjf83, CC BY-SA 3.0 · Putnam Museum: Ctjf83 of English Wikipedia (log), Public domain · Wildlife Prairie Park: Katherine Johnson, CC BY 2.0 · Carl Sandburg State Historic Site: Robert Haugland, CC BY-SA 4.0 · Vander Veer Botanical Park: David Wilson, CC BY 2.0 · Buffalo Bill Cody Homestead: Kepper66, CC BY-SA 3.0 · Crapo Park: Ian Poellet, CC BY-SA 3.0 · Adlai E. Stevenson I House: Nyttend, Public domain · Bickelhaupt Arboretum: Photo by Derek Ramsey (Ram-Man), CC BY-SA 2.5 · Black Hawk Museum and Lodge: Smallbones, CC0 · George L. Luthy Memorial Botanical Garden: Original uploader was ProfDEH at en.wikipedia, Public domain · Metamora Courthouse State Historic Site: ProfDEH, Public domain · Pine Creek Gristmill: Kepper66, CC BY-SA 3.0 · Quad City Botanical Center: Ctjf83 at English Wikipedia, Public domain · Ryan Round Barn: Ibzumin, CC BY-SA 3.0