Joe, just remember the USA is the size of Europe. Approximately 3,000 miles from East to West and the same North to South. It takes months to see the USA same as Europe.
Depending on your preferences there are some must sees: The Grand Canyon, The Space Center, Niagara Falls, The Great Lakes, The North West will remind you of home as will Ohio, lot's of German settlers in Ohio. My family is one of them.
Washington DC is 0K the monuments are wonderful. The traffic is atrocious and the food woefully overpriced.
Good travels in the USA and if you get to Ohio give me a shout. I'll be your guide.