Sturgis is the oldest commercial pretzel bakery in the United States, founded in 1861 in a stone-faced house on East Main Street. The bakery still gives short hands-on tours: you twist your own dough into a pretzel under the eye of a guide, listen to a short history of the operation, and visit the old stone-arch oven that produced the original pretzels.
The pretzels for sale today are made off-site, but the original building and the tour are the genuine article. A 30-minute visit, popular with families, with a small shop attached. Cash only at the door is sometimes a surprise for visitors.