I read that the 'Ye Olde College Diner' in State College, PA was recently torn down. Apparently, it was originally a Ward and Dickinson opened in 1929 that had been built and rebuilt over and around many times over. The original structure was found as part of the demolition.
Never realized it was there during the many breakfasts, dinners, and late night Grilled Stickies runs I made in the early 90s.