Spreading haphazardly along the leafy banks of the Rock River, Rockford (pop. 147,651) is a big, somewhat sprawling postindustrial city five miles west of the busy I-90 toll road from Chicago. US-20 bypasses the down-at-heel downtown area that, if the denizens wore more hats, would look like a film set on Main Street of industrial America circa 1949. Unfortunately, many of the classy office buildings and storefronts here have been abandoned in favor of anonymous office parks and shopping malls closer to the I-90 corridor.

North of downtown, along the west bank of the river and away from the frantic highways, one great place to check out (especially if you have creature-loving youngsters with you!) is the Burpee Museum of Natural History (737 N. Main St., 815/965-3433, Tues.-Sun., $10), where an entire floor of paleontology exhibits is highlighted by the skeleton of a 21-foot-tall, 65-million-year-old T. rex called “Jane.” Further north along the riverside, if the weather is nice, take time to stretch your legs while exploring the manicured grounds of Anderson Japanese Gardens (318 Spring St., 815/229-9390, daily, $9.50).

After exploring Rockford’s nooks and crannies, reward yourself with lunch or dinner at one of Illinois’s great road-food haunts, Der Rathskeller (1132 Auburn St., 815/963-2922), off Main Street a mile north of downtown Rockford. Since 1931, this Teutonic institution has been serving up skillets of sausage and potatoes, corned beef sandwiches, good desserts, and live accordion music on weekends! For something a bit more light and contemporary, taste your way through the tapas-style small dishes at Abreo (515 E. State St., 815/968-9463). If you’re in the mood for something hoppy, malty, and liquid, try the Carlyle Brewing pub (215 E. State St., 815/963-2739).

Rockford has lots of places to stay, from all the main chains along the interstate to old US-20’s Alpine Inn (4404 E. State St., 815/399-1890, $50 and up), a still-thriving icon of kitschy 1950s roadside Americana.