Skip to main content
Shedd Aquarium

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.

The Mueller Museum celebrates the life and legacy of Hieronymus Mueller, who emigrated from Germany to Decatur, Illinois, and founded several business concerns, including Mueller Co., which still exists today and produces many of the original signature Mueller products, namely water pressure valves and the iconic fire hydrants that we see in nearly every American town and city. Among the expanded facility's treasures: The seventh of only eight cars manufactured by Mueller!

What's happening nearby...

Twitty & Lynn at The Lincoln Square Theater

Lincoln Square Theater •  Apr 24 @ 7PM

Twitty & Lynn: A Salute to Conway & Loretta

Read more about Twitty & Lynn at The Lincoln Square Theater

"That's What She Said 2025" at the Lincoln Square Theater

Lincoln Square Theater •  Apr 25 @ 7PM

The Heart of Illinois Community Foundation is proud to announce: "That's What She Said 2025" Presented by Hickory Point Bank & Trust at the Historic Lincoln…

Read more about "That's What She Said 2025" at the Lincoln Square Theater

70's Bell Bottoms vs. 80's Big Hair at the Lincoln Square Theater

Lincoln Square Theater •  Apr 26 @ 7PM

Get ready for a night of unforgettable music as the '70's Bell Bottoms vs. 80's Big Hair' showdown comes to the Lincoln Square Theater.

Read more about 70's Bell Bottoms vs. 80's Big Hair at the Lincoln Square Theater

You might also be interested...

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

Governor Oglesby Mansion

Decatur

Read more about Governor Oglesby Mansion

Governor Oglesby Mansion History Museum

Decatur

Experience a piece of Decatur, IL history with a tour of this amazingly restored mansion.

Read more about Governor Oglesby Mansion History Museum

Subscribe to Our Newsletter

Get inspired by top travel stories, gain access to exclusive promotions and contests, and discover even more reasons to #EnjoyIllinois.