Chicago Trolley Company offers guided tours on a fleet of rubber-wheeled "San Francisco-style" trolleys that stop at a number of popular spots around the city, including Navy Pier, the Grant Park museums, the historic Water Tower, and the Sears Tower. You can stay on for the full 2-hour ride or get on and off at each stop. During the summer, the trolleys also offer trips to residential neighborhoods, including Hyde Park, the West Loop, and Wrigleyville. The trolleys operate year-round, but winter visitors won't need to wear a snowsuit: The vehicles are enclosed and heated during the chilliest months. The same company also operates the Chicago Double Decker Company, which has a fleet of London-style red buses. The two-level buses follow the same route as the trolleys; if you buy an all-day pass, you can hop from bus to trolley at any point. An added bonus: With each ticket, you'll get a free T-shirt and a coupon book with discounts at local restaurants and shops.