The Rollrights are good, because they are part of a complex. Very close by you can also see:

At Enstone, the Hoar stone at:
http://www.themodernantiquarian.com/site/3486/hoar_stone.html

At Dean, the Hawk stone:
http://www.themodernantiquarian.com/site/578/hawk_stone.html

At Churchill, the threestones
http://www.themodernantiquarian.com/site/4554/churchill_three_stones.html
and the village stones:
http://www.themodernantiquarian.com/site/3742/churchill_village_stones.html

and at Taston, the Thor stone:
http://www.themodernantiquarian.com/site/579/thor_stone.html