Patriots won the Super Bowl, matching the Steelers for most Super Bowl wins, with six. It was the lowest-scoring Super Bowl in the 53-year history of the game. Tom Brady captured his record sixth NFL title by throwing for 262 yards, without a touchdown.

It's as if the Caesars Superdome were built for the Super Bowl. This Sunday, the NFL's premier event returns to the iconic home of the New Orleans Saints for a record eighth time. The Superdome's central location in the city and the organizers' experience in hosting massive events makes it easy for the city to draw the league to New Orleans.

Is millions of dollars for 30 seconds of air time really worth it? Here's a timeline of how the Super Bowl became the most expensive night in advertising.