About This File
Loosely based on the appearance of the Old Patent Office Building in Washington DC, the Museum is a brand-new building with (for the first time) some brand-new behaviors. Basically, it's a landmark-meets-library - apart from attracting tourists that shovel out cash in the gift shop, it also lures in your local populace who might learn something from the experience. Given enough tourists, your sims' education will literally pay for itself.
It can be found under the education menu.
Special thanks to MaxisGuillaume for the idea and some guidance.