On September 22, 2002, the Detroit Lions played their first game at Ford Field against the Green Bay Packers. Ford Field is one of the NFL's most unique stadiums. It has 65,000 seats and has a fixed roof supported by two 18ft-wide concrete columns. A structural-steel supported permanent dome was chosen to cover the facility because of Detroit's cold and harsh winter weather. One of the unique aspects of Ford Field is that the entire south wall of the stadium is made of the 1920s Hudson Warehouse. The 80-year-old building was renovated to include 132 luxury suites on three levels facing the playing field. It also includes retail shops and restaurants. When one thinks of a dome stadium they do not expect to see any outside light inside. However Ford Field incorporates lots of glass allowing for natural light inside. On the south entrance of Ford Field is a six story glass atrium that gives fans tremendous views of downtown Detroit's skyline. The FieldTurf playing field is 45 feet below street level, allowing fans easier access to their seats. Amenities at Ford Field include 7,000 club seats, 140 luxury suites, a club lounge, banquet rooms, conference and convention areas and a Lions team store. In 2006, Ford Field hosted the biggest game in the NFL, Super Bowl XL.