The first Super Bowl held in a cold-weather city — but in the Pontiac Silverdome — was preceded by the 49ers' bus getting caught in traffic and several players needing to walk into the stadium.

Kansas City and Philadelphia faced off two years ago in the Super Bowl. Here's what NFL history shows about Super Bowl rematches.

Didn't bother them much: Ray Wersching kicked a Super Bowl record-tying four field goals to help lift the 49ers to their first NFL championship with a 26-21 win over the Bengals.