I've always been intrigued as to where roads finally come to an end. Here's an excellent site that has the termini of Oklahoma Highways. Some day I'll see most, if not all, of them.

Roadlahoma (http://roads.tulok.net/t0.html)

Good site. There's also OKHighways. (http://www.okhighways.com) Not only does it list the termini of all state highways, it contains a wealth of other information about all highways in Oklahoma. The author's original site is OKRoads (http://www.okroads.com) which has information on highways both in Oklahoma and around the country.