A public or institutional museum displaying historical, scientific, cultural, natural-history, or other collections. For an art museum specifically, 美術館 is more precise.
I took the children to the museum on the weekend.
この博物館には恐竜の化石が展示されている。
Dinosaur fossils are on display at this museum.
We visited a museum as part of a school class.
I saw ancient pottery at the museum.
This fossil is on display in the museum.
The museum is closed on Mondays.
cultural museum; museum of culture
history museum