Cody. Destination, the Buffalo Bill Historical Center, where they have an exhibit about Yellowstone, a museum dedicated to Buffalo Bill Cody and the town of Cody, and a small gun collection.
I didn’t get a picture of the sign, but it says something like “if you’re done viewing the 1200 1500 guns on this floor, there’s a further 1000 1200 on the other floor, use the lift over there”.
My brain melted and ran out my ears.