Less prone to explosions, bird collisions, and painful butt burns, the segway has edged out the jetpack as the official ride of the 23rd century. Practice on these leisurely chariots of fire with today's Groupon to Boston Gliders. A reservation is required, and groups of more than six people will be split. Arrive 20 minutes early and wear comfortable shoes. Choose between two options:

• For $35, you get a one-hour segway tour of Boston and a 5”x7” photo (a $67.95 value).
• For $45, you get a two-hour segway tour of Boston and a 5”x7” photo (a $92.95 value).

The knowledgeable guides at Boston Gliders lead educational wireless audio tours of historic Boston, introducing the vibrant city to visitors and helping locals gain a fresh perspective on their home turf. Following a brief but comprehensive training session, the one-hour tour glides guests through Boston's historic Harbor Walk, resplendent with stoic building façades and stunning views of the harbor's origami swan colonies. Excursions power up in the North End and roll through the Boston Harbor Arches before speeding into the Seaport District. After moseying past the Federal Courthouse, tours loop back through the Rose Kennedy Greenway, toppling hot-dog carts and flagrantly disregarding one-way sidewalks amid the hustle and bustle of downtown Boston.

Sightseers can embark on the two-hour tour, which journeys along Boston's Freedom Trail. Commencing in the North End, the tour crams receptive noggins with memorable facts about Faneuil Hall, the Old North Church, and Bunker Hill. Pause to admire the State House's glimmering 23-karat gold roof and privacy fence woven from the hairpieces of past presidents. The tour completes its lengthy loop by winding back along the Harbor Walk and speeding through the Rose Kennedy Greenway. Since driving a segway requires nothing but the ability to lean and the willingness to become an object of extreme envy, a tour accommodates both old (but young at heart) and young (but old at heart) passengers, though riders younger than 18 must be accompanied by a parent or guardian.