Came with my SO this past Saturday because he loves natural history museums. I wasn't incredibly excited by the idea initially (I always go to traditional museums when I visit cities, and I figured this one would be nothing special) but once we got there I was really happy to see how engaging and illustrative the exhibits were.
Perks:
-play like a paleontologist and use a chisel/brush to discover dinosaur bones
-build your own ecosystem
-a "touch" section including bears and other animals
-HUGE collection of gems from all over the world
-Casts of statues and architectural wonders from around Europe
-So many dinosaurs!