If you’re looking for a little adventure, these three destinations are worth adding to your Illinois road trip list. Exploring Illinois Caverns State Natural AreaGet our free mobile appBeneath Monroe County lies Illinois Caverns, a hidden underground world carved from limestone. Starved Rock State Park Hiking and WaterfallsCanva Canva loading...Starved Rock State Park in north-central Illinois is one of the state’s most iconic outdoor escapes. More of Illinois' natural wonders. READ MORE: Rent This Luxurious Glamping Dome Near Illinois’ Shawnee ForestLOOK: Best scenic drives in Illinois It's time to hit the road— Stacker compiled a list of the best scenic drives in Illinois using data from Tripadvisor as of March 2024.