Bridges: There's more to those things than you know, I swear. - Episode 7

Bridges are all over the place, from a log across a river to the Golden Gate bridge, which isn't even golden, but whatever... Their construction, upkeep, survival and history is rather amazing though, and they have come a long way. Give us 30 minutes and you will know more than you thought possible as well as annoy your friends on the next road trip. Win win.