To cross the US, that's a child dream which comes trues.
There are several options.
- Flying: fast, not too expensive but you don't get to see the scenery
- Driving: Cars are the main mean of transport in the US, but you need money (either to rent or buy), drivers and a lot of time... It's still a continent to cross.
- Bus: quite slow and mainly highways... So you don't get to see a lot neither.
- Train: more expensive than flying, faster than the bus and safer than the car. It goes where neither the bus nor the car can go.
Thus my choice is quickly made and I decide on a 72-hour train trip.