Although a vehicle's stability is directly related to the number of wheels it has, bicycles are still easier to ride than rollerblading millipedes. Spin stable spokes with today's Groupon: for $10, you get a half-day standard bike rental at Confluence Cyclery in Confluence (a $20 value).

Confluence Cyclery outfits excursionists of all ages, sizes, and skill levels with the necessary equipment to enjoy a half-day of bipedal pedaling adventures. Take a two-wheeled escapade with a mechanical steed from Confluence's extensive stable of standard bicycles, including sturdy hybrids and smooth-riding mountain bikes for trail-riding or laid-back cruisers for pavement-pounding. For an extra fee, cyclists gain access to the shop's additional stockpile of leisurely recumbent cycles—which feature a reclined seating position and cushy seat—and tandem bikes, perfect for aerobic enjoyment with a significant other or circus bear. Many of the shop's bikes feature rear racks and bags, which ensure that riders never have to leave their moist towelettes at home again.

Confluence Cyclery is conveniently located near the Great Allegheny Passage, which provides bikers with 135 miles of idyllic scenery. Converted from an old railway, the crushed-limestone trail winds along riverbanks and through small towns, flanked on either side by picturesque forests filled with Industrial Revolution–era gnomes.