The Carnegie Museum of Natural History in Pittsburgh has the absolutely stunning Hillman Hall of Minerals and Gems. https://carnegiemnh.org/explore/hillman-hal

The Carnegie Museum of Natural History in Pittsburgh has the absolutely stunning Hillman Hall of Minerals and Gems. https://carnegiemnh.org/explore/hillman-hall-of-minerals-and-gems/ https://carnegiemnh.org/explore/hillman-hall-of-minerals-and... Spent many hours there