This museum is actually a National Historic District, displaying the oldest continuously running suburban trolley in the U.S. Visitors can take a 3-mile tour on the trolley and tour the attraction’s museum, which details the history of trolleys in Connecticut. Look for Guest Operator weekends to have a chance driving a trolley. The museum is open weekends in May, September and October, and daily from Memorial Day through Labor Day, 10 a.m. to 5 p.m.