Beantown Trolley can be boarded at any one of 11 stops, including the main trolley depot near the New England Aquarium. An 80-minute narrated trolley tour shows passengers most of downtown Boston and parts of Cambridge. The trip also includes either admission to the Mapparium at The Mary Baker Eddy Library or, from May through October, a 45-minute harbor cruise.
Guided tours are available. Time: Allow 3 hours minimum.