My wife and I are planning to do coast to coast trip starting from July 1. We will start from Albany, NY and have to return to Albany by August 1. I am thinking whether we should do a one way trip to west coast and fly back to east coast or do a loop trip. There are several spots that we don't want to miss, like yellow stone, grand canyon, Las vegas, LA. What plan and route should I take? Is it possible to make a loop trip within one month? thank you for your advice.