If you are interested in going to galleries, there is a great list made by an SL citizen Sasun Steinbeck. http://sasun.info/ArtGalleriesOfSL.aspx

There are many of the galleries that have exhibitions in SL. Some of them are branches of galleries in the real world. It's well worth taking a look at.

The picture from my gallery in Second Sweden that unfortunately no longer exists but next week I will start a new gallery next to Linden Village.