We want to drive across country in the spring of 2014 from Las Vegas to Niagara Falls (Buffalo, NY). Any suggestions on planning a route, sites to see, places to stay, Routes NOT to take, and places to eat would be appreciated. We will be retired. so time is not a problem. We would love to see some waterfalls, forest, farms (cows), and covered bridges along the way. Thinking about taking Route I 80 ??