Take a look at these 12 facts about the Cardinals' home: University of Phoenix Stadium.
1. University of Phoenix stadium has the first fully retractable playing field in North America. It is also made of real grass, and takes about 75 minutes to move the 741 feet inside or outside. Watch it retract:
2. There are 77 public restrooms in the stadium -- 30 for men, 35 for women and 12 for families.
3. University of Phoenix stadium has 63,400 permanent seats but can expand to up to 72,200 for larger events, like the Super Bowl.
4. The stadium took three years to build and opened on Aug. 3, 2006.
5. The stadium's retractable roof takes around 15 minutes to open and close.
6. There are 6 levels in the stadium -- the field, main level, club level, suite level, upper concourse and mechanical level. Each level also contains a mural that represents Arizona's different environments.
7. The stadium costs $455 million.
8. If the stadium seats were set in a straight line, it would stretch approximately 18 miles or about 1,549 football fields.
9. If all of the concrete used in the stadium were spread out it would create a 900-mile sidewalk from Phoenix to San Francisco.
10. The exterior skin of the stadium is supposed to represent a barrel cactus.
11. There are 14,000 onsite parking spaces and 12,000 additional spaces in the surrounding area.
12. Super Bowl XLIX was the first game to be played under an LED lighting system, according to the stadium's Twitter account.
