GREYHOUND

Founded in 1914 in neighboring Minnesota, Greyhound is the country's leading bus company. It serves all major American cities. The buses are very modern and well-equipped, usually with Wi-Fi and toilets at the rear of the vehicle. It's best to book your trip in advance on their website, to make sure you get a seat at the time you want, and to save a few bucks. In Milwaukee, buses stop at the Intermodal Station. There are several departures every day.