The I.M. Pei-designed Zeckendorf Plaza Hilton, now the Denver Downtown Sheraton, provides a wide variety of patterns for interesting viewing from most any angle. (Daniel J. Schneider)
The I.M. Pei-designed Zeckendorf Plaza Hilton, now the Denver Downtown Sheraton, provides a wide variety of patterns for interesting viewing from most any angle. (Daniel J. Schneider)