The Los Angeles Natural History Museum has some of the best animal scene dioramas that I’ve ever seen. They have two large main galleries, one for North America and one for Africa. Dinosaur skeletons are positioned between the two main galleries. There is also an extensive gallery dedicated to California history in the basement.
I visited the museum on my recent trip down to L.A. for Christmas. I took three of my kids with me and they had a great time. Since I have a family membership to the Lawrence Hall of Science up here in Berkeley, my admission was free.
I took a bunch of shots of the animals and images and have them up in a gallery on Zooomr. I’ll add more later as I have time.