And I still have uncomfortable moments remembering the Birmingham North Interchange ... Spaghetti Junction!
Spaghetti Junction was well named for its day, but is tame compared to some modern junctions. My worst moment was trying to get to a hotel in north Austin, Texas. The only access to the hotel appeared to be on (or off) one of the slipways of a multi-level freeway interchange, and although I could see the hotel it took me several turns around several interchanges to make it. In daylight and not jet lagged it was a little easier.

Rod