The Freedom Trail isn't just about colonial Boston. If you need proof, detour from the trail to the city's museum of immigration. Boston native Ben Franklin is the "host" of a multimedia show about the changing face of the population. It's an interactive experience unlike the city's typically low-tech attractions -- a big plus if you're traveling with wired (in both senses) kids. You'll have your passport stamped as you make your way through the exhibits. They include a gallery of bags and suitcases that offers a look at what people brought on their journeys to the New World, gangplanks that move, walls that "talk," and the interiors of two important modes of transportation: an early-20th-century ship and a jet liner. Temporary exhibits on immigration-related topics change every 3 months. Allow at least an hour.