The tallest skyscraper in the Texas Panhandle, located in Amarillo, this week was named to the National Register of Historic Places. The FirstBank Southwest Tower at 600 S. Tyler St. in Amarillo, next to the Sixth Avenue alignment of Route 66 in downtown Amarillo, earned the designation Wednesday, according to an email Friday from the … Continue reading Amarillo’s tallest building named to National Register of Historic Places