Trolley driver Rich Alvey has been showing visitors around for 12 years, so he knows Hannibal's attractions. The trolley takes folks to Twain attractions, plus local favorites like Riverview Park. Stops allow ample time for looking around and snapping photos, and Alvey's entertaining spiel covers Hannibal history and Samuel Clemens. In summer months, the trolley is open-air, so you get a nice breeze as you tool around. Daily rides are available from mid-April to the end of October. During the off-season, the trolley is by appointment only.