This incredible map which shows every single road within the United States (on the same map).
Map Of ALL Roads In The United States
After opening the map, you can click and scroll for full resolution.
13500×9000 pixels (10.4 MB)
The map has been making its way around the web, and is in the public domain. According to The Washington Post, the road map originated from a Reddit user, WestCoastBestCoast94, who apparently created it.
UPDATE: It appears the map referenced in the link above may no longer available.
Note: If you’re looking for a ‘navigational’ road map for your State, you will find some of the best choices in the following article: