First trip to the US

just one thing to keep in mind, the US is huge
I have family or friends come over from Europe from time to time, and they look at a map and say "lets drive from Niagara falls to mount Rushmore today"
and they don't realize that even though its only 22 inches on a map, it is 22 hours in a car, because 22 inches on their maps is generally 2 hours