The long Fourth of July weekend will find a lot of people over at the Union Terrace, perhaps to go boating or have a brat and beer or to look at Lake Mendota.
While there, they should wander up to the second floor, where the Wisconsin Union Galleries have a major retrospective of Madison painter Robert Grilley up through July 15. (Admission is free; gallery hours are daily, 8 a.m. to 10 p.m.)