Illinois is one of America's best known and most popular states, and with good reason. Chicago is a vast economic and cultural hub and the state's position on Lake Michigan adds to its already vast geographic diversity. Staying in one of the amazing tree houses that Illinois has to offer can enhance the experience of staying in an already great state. The Mormon Pioneer National Historic Trail begins in Nauvoo, Illinois, and travels across five states. This is the route that 70,000 Mormons traveled from 1846 to 1869 to escape religious persecution. The Lincoln Home National Historic Site in Springfield preserves the home and historic district where Abraham Lincoln lived from 1844 to 1861, before becoming the 16th President of the United States.