When I first attended as a kid the stadium we went to had distractions. It only had seating round two sides as the opposite side just had "bleachers" - concrete steps with no roof.
I could sit high up in the main stand and look over at the railway station and shunting yards where the engines (switchers in the USA) would sort the wagons out. Also an airport was nearby so I could see a couple of planes an hour take off and land to relive the tedium.
Sadly about three years in to a ten year stretch the stadium was turned into an all-seater and I could no longer see the railway and the planes flew too low to be visaible anymore.