Circle K store in 'Bill and Ted's Excellent Adventure"

In the 1989 movie, Bill (Alex Winter) and Ted (Keanu Reeves) are in danger of flunking out of school if they do not come up with a great oral report for their world history class. While shopping at this convenient store, a phone booth falls from the sky. As it turns out, the phone booth is a time machine, and the boys use it to round up key people from the past in order to help them in their report.