Hi! I work at a museum!
OK,  that means you will know a lot about history, a museum cares for  a collection of artifacts and other objects of artistic, cultural, historical, or scientific importance.
Yes! Specifically I work at the Field Museum in Chicago! We had "Sue" the T-Rex in our museum for a long time.
Wow,  that must be a very big one,  because  The largest museums are located in major cities throughout the world, while thousands of local museums exist in smaller cities