I made the mistake of entering the hall of architecture first where everything is a cast of originals in Europe and elsewhere in the world. It was a bit disappointing
But then walk through the dinosaur gift store and into the amazing halls where complete original fossils of T Rex (the first one found in the world in 1906) and all sorts of massive intact fossilized skeletons are on display. Truly breathtaking.
My only complaint was that they have a film which only shows twice daily in the theatre. It would be nice if they ran it more often in case Tomis the 11:30 because you didn't know it was running and had to miss the 3:30 because you were gone. Also FYI the sculpture museum is closed for renovation now