Illinois

Illinois sits at the crossroads of America, stretching from the southern tip of Lake Michigan—home to one of the world's great cities—down through the flat, fertile plains of the Midwest to the confluence of the Ohio and Mississippi rivers. The state's defining tension is the one between Chicago, a global metropolis of architecture, jazz, and deep-dish pizza, and the quieter heartland that surrounds it: rolling prairies, small river towns, and agricultural communities that feel a world away from the lakefront skyline. That contrast is what makes Illinois so rewarding to explore.

Beyond Chicago, Illinois rewards curiosity with an outsized political history. Springfield, the state capital, is where Abraham Lincoln practiced law, gave his famous "House Divided" speech, and is buried. The Mississippi River bluffs in the northwest corner of the state shelter Galena, a Victorian-era lead-mining town so well preserved it looks lifted from a daguerreotype. Illinois also holds a remarkable architectural heritage—Louis Sullivan, Frank Lloyd Wright, Mies van der Rohe, and Jeanne Gang all left landmark buildings here.

The state's geography is dominated by the Illinois River valley, the Mississippi to the west, Lake Michigan to the northeast, and the forested Shawnee Hills in the deep south. Elevations barely top 300 metres across most of the state, making travel easy and distances feel manageable.

May through October is the practical travel window for Illinois. Late spring (May–June) brings mild temperatures, wildflowers across the state's few remaining prairie remnants, and the start of Chicago's festival season without the peak-summer crowds. Summer (July–August) is warm and humid—highs regularly reach 30–33°C in Chicago and push higher downstate—but this is peak season for outdoor events, rooftop bars, lakefront beaches, and farmers' markets. Autumn (September–October) is the best overall season: crisp air, fall foliage along the river bluffs, harvest festivals, and thinner crowds at museums.

Winter (November–March) brings genuine cold: Chicago's wind-chill effect earns the "Windy City" nickname fully, with temperatures sometimes dropping below −20°C. That said, winter offers uncrowded museums, the Chicago Symphony's main season, and dramatic frozen-lakefront scenery. Galena hosts popular Christmas-season events if winter travel appeals.

Key festivals to plan around: the Chicago Jazz Festival (Labor Day weekend, free), Lollapalooza in Grant Park (late July/early August), the Illinois State Fair in Springfield (mid-August), and Galena's Civil War Days (June).

By air: O'Hare International (ORD) and Midway (MDW) together make Chicago one of North America's busiest aviation hubs, with direct connections across the globe. Downstate visitors sometimes fly into St. Louis Lambert (STL) for the southern half of the state.

By rail: Amtrak serves Illinois better than most Midwestern states. The Illinois Service corridor runs Chicago–Springfield–Carbondale several times daily; journey time Chicago to Springfield is roughly 3.5 hours. The Carl Sandburg and Illinois Zephyr connect Chicago to Quincy along the Mississippi. Peoria, however, has no Amtrak service—you'll need a bus or car.

By bus: Greyhound and FlixBus connect Chicago with Springfield, Peoria, Galena, and Rockford. Journey times are comparable to rail.

By car: The most flexible option downstate. I-55 runs Chicago–Springfield–St. Louis; I-39/US-51 bisects the state north–south through Peoria; US-20 follows the northwest corridor toward Galena. Parking is manageable outside Chicago; inside the city, ride-share (Uber/Lyft) or the CTA L train is far easier.

Within Chicago: The CTA's L elevated/subway network covers most tourist areas. The Metra commuter rail reaches suburbs. Divvy bike-share is excellent in warm months.

• Chicago — Illinois's global city: world-class architecture, the Art Institute, Navy Pier, deep-dish pizza, and 26 miles of Lake Michigan shoreline.
• Springfield (Illinois) — the historic state capital and Lincoln country: the Lincoln Home, Lincoln Presidential Library, and Lincoln's Tomb draw history travelers from across the United States.
• Peoria (Illinois) — the Illinois River's commercial heart, with a walkable riverfront, the Peoria Riverfront Museum, and the Wildlife Prairie Park nearby.
• Galena (Illinois) — a beautifully preserved 19th-century lead-mining town in the northwest bluffs, lined with antique shops, B&Bs, and the Ulysses S. Grant Home.

Illinois food is anchored by Chicago's legendary culinary identity, but the state has its own distinct regional flavors. The Chicago-style hot dog—a Vienna Beef frank in a poppy-seed bun loaded with yellow mustard, relish, tomato, onions, sport peppers, celery salt, and a dill pickle spear, never ketchup—is almost a civic religion. Deep-dish pizza (Giordano's, Lou Malnati's, Pequod's) is the export the city is famous for worldwide, though thin-crust tavern-cut pizza is what locals eat most days.

In the river towns, catfish fries and tenderloin sandwiches (breaded pork, pounded thin, far wider than the bun) speak to the Midwestern heartland. Springfield is home to the horseshoe sandwich—an open-faced monster of thick white toast, your choice of meat, and french fries, all smothered in a cheddar cheese sauce—invented at the Leland Hotel in the 1920s and still served across the capital.

Chicago's restaurant scene covers every cuisine: Alinea for molecular modernist tasting menus, Next for themed historical cuisine, Girl & the Goat for American bistro fare. The Chicago French Market in the Loop and the Maxwell Street Market (Sundays) are good starting points for food stalls. Pilsen's 18th Street is the hub for authentic Mexican taquerias; Devon Avenue (Far North Side) is the best South Asian dining corridor outside New York or New Jersey.

Illinois punches far above its weight culturally, led by Chicago's institutions. The Art Institute of Chicago holds one of the world's finest collections of Impressionist and post-Impressionist paintings alongside a stunning suite of Tiffany glass and architectural fragments. The Chicago Symphony Orchestra (season September–May) is consistently ranked among the top five orchestras globally. Blues clubs on the North Side and in Bronzeville preserve the Chicago electric blues tradition—Buddy Guy's Legends on South Wabash is the landmark venue.

Lollapalooza (Grant Park, late July/early August) has become one of the biggest music festivals in North America, drawing 400,000 attendees across four days. The Chicago Jazz Festival (Labor Day weekend) is free in Millennium Park and Pritzker Pavilion. The Taste of Chicago food festival (July) lets visitors sample dozens of city restaurants in one place.

Downstate: the Illinois State Fair in Springfield (mid-August) is a proper traditional Midwestern fair—livestock competitions, carnival rides, butter sculptures, and political glad-handing. Galena's Galena ArtFest (August) draws regional artists to the historic downtown. Rockford's On the Waterfront music festival (Labor Day) is the largest free music event downstate.

Illinois is also the birthplace of the American labor movement—the Haymarket affair of 1886 happened in Chicago—and the state has a dense network of Civil War, Lincoln, and Route 66 heritage sites that form coherent road-trip circuits.

Walking the Chicago Architectural Boat Tour — A 90-minute river cruise narrated by architecture docents is the single best way to understand Chicago's built environment, from the neo-Gothic Tribune Tower to the Mies van der Rohe glass towers to the contemporary Aqua Tower. Several operators run daily departures from the Riverwalk from April through November.

Tracing Lincoln's Illinois — Drive the 36 sites of the Lincoln Heritage Trail from Springfield (the Lincoln Home NHS, Lincoln's Tomb, Lincoln Presidential Library and Museum) north to New Salem State Historic Site, where Lincoln lived as a young man, and on to Chicago's Lincoln Park, named in his honor. This is one of the most concentrated Presidential heritage circuits in the United States.

Exploring the Shawnee National Forest — Illinois's deep-south corner surprises visitors expecting endless flatlands. The Garden of the Gods sandstone formations, Cave-in-Rock on the Ohio River, and the Giant City State Park boulders are within a few hours' drive of each other—a landscape that looks more like the Ozarks than the Midwest.

Riding the elevated L through Chicago's neighborhoods — Taking the Brown Line or the Pink Line above street level through Wicker Park, Logan Square, and Pilsen is an affordable, immersive way to see how the city's distinct ethnic neighborhoods look and feel at ground level, without a car.

Spending a weekend in Galena — Stay in one of the town's Victorian B&Bs, browse the antique dealers on Main Street, visit the Ulysses S. Grant Home (a state historic site, free entry), and drive out to the bluff-top Galena Territory for views across the Driftless Area into Wisconsin and Iowa. Best in October when the hardwood ridges turn gold and scarlet.