The Zion's Co-operative Mercantile Institution (a.k.a. ZCMI), as it appeared in 1910.  It opened -as one of America's first department stores- in April 1876. 97 years later, the original store was demolished, as part of the construction of the ZCMI CENTER mall. The cast iron facade was restored and installed on a new ZCMI CENTER location, which opened in September 1976.
Photo from Wikipedia / "Tillman"

The Atrium area and mallway entry of ZCMI is seen in this circa-1976 snapshot. 
Photo from "PatricksMercy"