Designed to mimic the traveling medicine shows of old, the cavalcade rolls from town to town in a colorfully painted, authentic double-decker bus from London. The Arcade of Oddities “museum” will display running wonders such as the world’s biggest shoe, the legendary Bunion Boy’s malady preserved and pulsating in a jar, and other strange and memorable exhibits.

Brooks representatives will offer free gait analyses to determine the appropriate shoe for every runner and walker. Every participant will get a free prize, and will have a chance to win a trip for two to any event in the Rock ’n’ Roll Marathon series.

Food and beverages — including free popcorn, cotton candy and snow cones — will be available. A group run and walk on the McDowell Creek Greenway (behind Birkdale Village) will conclude the festivities at 6 p.m.

Fleet Feet Sports is at 16620 Cranlyn Road in Huntersville’s Birkdale Village. For more information, go to www.fleetfeethuntersville.com, or call 704-896-2202.