Etheria H
Google
It's one of my favorite museums in Cambridge. This museum is so old-fashioned and professional. They displayed tons of fossils, shells, animal teeth, bones, skeletons, etc. They are all categorized carefully and come with handwritten names. The museum has two hallways, and a chamber for gems. It's easy to spend 1 hour here but if you wanna look at things more thoroughly, or you come with family, you may wanna spare 1 and half hours or two hours at this fabulous place.