maybe you have never been there, but it is pink on the outside
Maybe you haven't been there recently. Not to mention the stadum renovations were a huge deal on the message boards in the offseason because of the change in color scheme.
Wikipedia entry....
http://en.wikipedia.org/wiki/Georgia_Dome
Renovations
In 2006, the Atlanta Falcons and the Georgia World Congress Center Authority announced a $30 million renovation to the Georgia Dome. The project was separated into two stages. The first stage, which took place before the 2007 NFL season, focused on updating the premium seating areas, including the creation of eight "super-suites."[2] The renovations for 2008 will be more apparent to visitors of the Georgia Dome. The exterior of the stadium was repainted from its original color scheme to the Falcons color scheme, and the stadium's original teal seats were replaced with red seats in the 100 and 300 levels and black seats in the general admission areas of the 200 level. The seats in the club sections were already replaced in the earlier renovation. The entrance gates and concourses are also being renovated and updated before the 2008 football season.[3] [4]