They've hidden thirteen gnomes.
Here's the sign you will see when you enter the museum:
And there are gnomes that are hidden in the mouths of the dinosaurs, in trees, and on the back of a massive shark, but the hardest ones to find were in the murals. Like this one:
It took forever to find the hidden gnome here! But I must say, I learned a lot about dinosaurs while I was looking for the gnomes. And we were able to find eight gnomes! It was a fun day.
Have you done anything fun this summer?