See the history behind Mary Kay Ash and her world-famous company, Mary Kay Cosmetics. Displays include many of the lavish rewards given to sales people that made the Mary Kay line famous - diamond bar pins, diamond rings, and the ultimate prize - the pink Cadillac. Open Tues. - Fri. 9 a.m. - 4:30 p.m On 16251 N. Dallas Parkway. For more information on tour times, days closed, etc.