Franz Bakery
United States Bakery is better known as Franz Family Bakeries, is located in Portland, Oregon.
Trivia
In collaboration with E. E. Franz of Franz Bakery, Mr. Yaw invented the five-inch diameter hamburger bun in the late 1920s. Though others are credited with creating a bread product to use for the first hamburgers known to the world, Franz is credited for inventing the hamburger bun in its current world-wide accepted form.[1][2]
In July of 2006 Franz baked a 104 foot 9.5 inch hot dog bun in a successful attempt to break the Guinness world record for the World's Longest Hot Dog.
Free tours of the bakery are available to the public.[3]