WOLFIN VILLAGE was Amarillo's first suburban-type shopping center. The facility opened in the summer of 1953 and is in business to this very day.
Graphic and photo from Wolfin Village Merchants

Next came WESTERN PLAZA, a fully-enclosed mall, which was dedicated in early 1968. After a prolonged commercial demise, it was shuttered in April 2006, demolished in June 2007, and replaced by WESTERN CROSSING. This power plaza held its grand opening in November 2008.
Graphic from Hedgecoke Properties

Photo from www.loopnet.com

WESTGATE MALL was dedicated in October 1982, with Bealls ["bellz"], Mervyn’s, Sears and Dillard’s as anchors. J.C. Penny arrived in January 1986, after being snatched from SUNSET CENTER.

Graphic from https://www.westgatemalltx.com

Photo from www.bing.com

As an attempt to keep up with the shiny new WESTGATE, Amarillo's original shopping mall was given an indoor-outdoor refurbishment in the mid-1980s. It was renamed SUNSET MARKETOWN. Unfortunately, this revitalization failed to reverse the mall's downward spiral.

Drawing from https://www.artsinthesunset.org