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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...

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!

Read more about Ancient Athletics presents D-Town Throwdown Highland Games

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 2026

Run the World - Tribute to Beyonce & Destiny's Child at the Devon Lakeshore Amphitheater

The Devon Lakeshore Amphitheater •  May 23 @ 7PM

Get ready to dance, sing, and flip your hair like Queen Bey herself! Run the World – Tribute to Beyoncé & Destiny’s Child brings an explosive, high-energy…

Read more about Run the World - Tribute to Beyonce & Destiny's Child at the Devon Lakeshore Amphitheater

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