Crystal Bridges in Bentonville, Arkansas has a great collection. They also put together some very cool special exhibits.
This summer they put together an exhibit called "Beyond O'Keeffe" which contained much of her work, as well as some from artists with a similar "feel".
I love O'Keeffe's work, but, The Beyond - one of her last pieces - she had to paint this using her peripheral vision as her eyesight was failing - I think will always be my favorite.
What lies beyond the horizon?
Fish was such a good sport to go with me.
xoxo a.d. elliott