art museum; art gallery
A museum or gallery dedicated to art. Often used interchangeably with 美術館, though 美術博物館 may imply a broader museum with art collections.
See also: 美術館
I went to the new art museum over the weekend.
More common term for art museum/gallery. 美術博物館 is less frequent and may emphasize a museum-like scope.
Compound of 美術 (art) + 博物館 (museum).