Ruby's World Of Tomorrow Diner, at the center of the mall. Its decor is based upon the architecture of the 1939-1940 New York World's Fair. That's a Trylon on the left.
Photo from www.mitchglaser.com
In a circa-1999 plan, we see the newly-reconfigured Promenade area (in dark gray). Five northeast store blocks have been rebuilt into large big box stores. Two of these became a Nordstom Rack (the mallway in between being sealed over). A new name has also been bequeathed on the complex; WESTFIELD SHOPPINGTOWN MISSION VALLEY.