It's easy to catch a ride on the Beantown Trolley. The big red San Francisco-style trolley stops at all major hotels and most sightseeing stops throughout Boston. With point-to-point shuttle service, you can hop on or off at any of the 20 stops along the tour.  Beantown Trolley is a function of Brush Hill Tours, a company founded in 1920 as a service bus line, which eventually branched out into sightseeing in 1981. Tickets can be purchased aboard the trolleys or at any one of several ticketing locations, including the interior of the Prudential Center just outside the Sheraton entrance. Trolleys can also be chartered for events such as weddings, parades and private events.