These pictures were sent in by AS. He forwards this blurb from the tower's website: "A 68-second elevator ride propels visitors 55 stories to the top of the Hyatt Regency's Reunion Tower for a breathtaking 360-degree view of Dallas. An easily recognizable landmark for Dallas and a dramatic addition to the evening skyline with its lighted dome and flashing light show, the tower has a public observation deck as well as Antares restaurant and the Dome cocktail lounge that rotate at the rate of one revolution every 55 minutes".
The top photo was taken at the Dome Cocktail Lounge while the photo below was snapped on the observation deck, directly underneath.