That's quite a pull Stan. I travel all over the US in a vehicle and try to limit it to no more than 10 hours, but sometimes ya gotta just keep rollin on. Philly is notorious for old roadways that are very narrow. Any accident happens and there's no shoulder for the emergency vehicles or to push a disabled vehicle off.
Going to be blowing all the way through MN on 94 in a few weeks. About a 14 hour drive straight thru. On the way to NoDak for a week of duck hunting. I hope to pass all those Mannysotans in the opposite lane coming back from their 4 day teachers holiday weekend. You guys nearly double the population of the state while you're there. It's hard to find a place to hunt during that time without seeing "The Land of 10,000 Lakes" on every license plate.
