The district also features the Ghirardelli chocolate factory built to resemble the iconic San Francisco chocolate factory , and the Boudin Bakery Tour , touring the sourdough bread-making process with Rosie O'Donnell and Colin Mochrie as video tour guides .
Another attraction is the Boudin Bakery Tour , which is a tour of the sourdough bread making process with Rosie O'Donnell and Colin Mochrie as video tour guides .