Ft. Worth has the Kimball, Amon Carter and the newer Modern Museum. All are excellent museums.
I put the Modern as one of my favorites, good shows -no hassles.
Alot of people dislike the landscape in this area -I grew up here and love it. The storms, the sun, the long shadows, the oaks. The openness is refreshing to me, and in my mind does not always equate as bland or empty. You'll grow to love the evenings and the big horizon.