A frontal view of RIVER ROADS CENTER, which was one of the first fully-enclosed retail complexes in the Show Me State. It vies for this honor with Kansas City's WARD PARKWAY CENTER. The enclosed shopping concourses of both facilities were officially dedicated on August 16, 1962.
Photo from http://riverroadsmalljenningsmo.blogspot.com / "The History of River Roads Mall"

A circa-1962 site plan of the complex. It had been built as a showcase for a Stix store, which anchored the west end. The RIVER ROADS Stix was the retailer's second suburban branch. Its posh Pavilion Restaurant included a sunken outdoor garden. The mall's parking area had space for three thousand two hundred autos.