The Perot Museum of Nature and Science is spectacular! The museum staff were all very helpful and scientifically literate. The building is an exhibit all on its own! The transparent elevators are a trip! There are 11 permanent exhibit halls to explore and trust me, you won't be able to absorb all of it in one visit. I have several days off next week and I am going to make sure I devote one of those days to a second visit. The Life Then and Now Hall and Expanding Universe Hall occupied the majority of my time and I still didn't explore every detail within them. The Being Human Hall was crowded with school groups but the portion I was able to see was incredible! It features actual cross-section slices of the human body from people who have donated their bodies to science. I spent a few minutes in the Dynamic Earth Hall and had a lot of fun on the earthquake simulator. Lunch in the cafe was delicious. Afterward, I went into the theater and watched "Sea Monsters" in 3-D. It was well worth the extra $5. I can't wait to see what other science films they will show in future. As for the Sports, Engineering and Innovation, Energy, Gems and Minerals, and Birds halls, I will have to see those when I go back. I will definitely purchase a membership!