Hieronymus Mueller Museum
420 W. Eldorado St., Decatur, IL 62521
Museums
Located on Mueller Company grounds, the museum celebrates the accomplishments of inventor Hieronymus Mueller, Decatur's "Unsung Genius" and holder of over 500 patents.
What's happening nearby...
Decatur Comic-Con 3
Decatur Civic Center • Apr 11 – Apr 12 @ 10AM
Midwest Toy & Comic Fest brings fans to Decatur for a high-energy weekend packed with celebrity guests, cosplay, collectibles, and pop culture fun for all ages.
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Ancient Athletics presents D-Town Throwdown Highland Games
Horace B Garman Park • Apr 25 @ 8:30AM
Watch as participants compete in highland games and carry out traditions dating back to the eleventh century or earlier!
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Decatur Craft Beer Festival 2026
Central Park - Downtown Decatur • May 02 @ 12noon
The Decatur Craft Beer Festival returns to Central Park in Downtown Decatur, bringing together a variety of breweries from across Illinois and beyond.
Read more about Decatur Craft Beer Festival 2026You might also be interested...
African-American Cultural & Genealogical Society of Illinois Museum
Decatur
Located near Downtown Decatur, the African-American Cultural & Genealogical Society of IL Museum promotes and preserves the study of African-American history.
Read more about African-American Cultural & Genealogical Society of Illinois Museum
Macon County History Museum
Decatur
The Prairie Years and Victorian Era in Central Illinois come to life in exhibits at the Macon County History Museum!
Read more about Macon County History Museum