Tucked into the Allen County Historical Society and Museum in Lima, Ohio, is a room most visitors never see coming. Ask the docent about the James E. Grosjean Room and the lights dim, a vintage soundtrack kicks in, and an entire cast of mechanical animals marches two by two toward Noah's Ark while a dove flutters across a stained-glass sky.

This isn't modern theme park tech. The ark display was built in 1901, decades before Disney pioneered animatronics, and it works the way a Victorian-era light show would have: shifting beams, filmstrip narration, and handcrafted mechanical motion. It feels equal sides folk art and fairground spectacle, with a distinctly Midwestern charm that recordings simply can't capture. You have to be in the room.

The man behind it was a genuine oddball of American ingenuity. James E. Grosjean cycled through careers as an undertaker, shoe salesman, inventor and historian, treating each as an excuse to build things. His first attempt at a mechanical spectacular, a story of Cock Robin, was lost in the catastrophic 1913 Dayton Flood while out on loan. The ark, however, survived — and it had already racked up quite a résumé. The Pan-American Exposition in Buffalo turned it down, so Grosjean took it to Niagara Falls on his own dime, then landed it as a window attraction at Marshall Fields in Chicago and Macy's in New York before it came home to his own downtown Lima shoe store.

When Grosjean became president of the Allen County Historical Society in 1915, he made sure the ark stayed put, remaining in the post until his death in 1938. His collection now anchors a museum that covers the usual county-history bases — quilts, model trains, native artifacts and natural history — but with an unusually poetic edge. Lima itself is part of the story: a town that boomed fast on oil, once ran trolleys and a grand opera house, and now wears its Rust Belt decline openly. The museum reads as a preserved memory of that more optimistic era, and the Grosjean Room is its centrepiece.

For travellers, this is exactly the kind of roadside oddity worth a detour. Northwest Ohio isn't on many international itineraries, but anyone driving between Columbus and Toledo, or cruising historic Route 25, is within easy reach. It's a rare chance to see working pre-animatronic mechanics — a living link between 19th-century fairground shows and modern theme parks — in a small-town museum that rarely crowds. Check opening hours before you go, since small county museums keep limited schedules, and make sure to ask for the Grosjean Room demonstration. That's where the magic switches on.