The March Bake Shop was a bakery located in New York City that was in operation in the year 1930. It was located on a street corner, next door to the Twenty-First Street Mission.
James T. Kirk and Spock ran past the March Bake Shop before dashing into the basement of the Mission. (TOS: "The City on the Edge of Forever")
This set was located at the 40 Acres Studio Backlot.