While Lambeau Field certainly has a great atmosphere, I think the best stadium has to be AT&T Stadium in Dallas. The giant HD video board and the retractable roof make for an amazing experience, and the stadium is just so impressive to look at.
AT&T Stadium, also known as “Jerry World,” is widely considered one of the most impressive and high-tech stadiums in the NFL. It has a capacity of 100,000 and features a massive video board and various luxury suites and lounges.