Endpoints, photos, maps, and history
They are all covered on this site: over 600 webpages, containing approx. 5000 images, including 81 route maps. Over 200 people have contributed to this effort, but the job is never done, and your help is appreciated.
You can search for highway endpoints geographically by using this interactive map. Or, if you know the route number, use the "Endpoints" menu to navigate to the page for that route. A few tips:
"I absolutely love your website and we use it annually. My wife and I put some 400 slips of paper in a jar, each of which contain 300-500 mile stretches of US Highway. We pick one at random and drive that route for our vacation. Your website is a mainstay of our trip planning. Thank you for a GREAT job for geography and Americana fans like us."