Today is your last chance to see a little chunk of pure American magnificence—a stellar production of August Wilson's masterpiece. Troy Maxson is a thorny man: He ran away from home when his dad tried to rape his girlfriend, became a thief and a daddy and a convict, ascended in baseball's Negro leagues but couldn't break the pro-sports color barrier, and became an embittered garbage collector. His tall tales and towering rages, delivered in Wilson's rich, lyrical dialogue, make some of the best theater you can hope to see. Fences takes place in a Pittsburgh backyard, but its scope is as deep and wide as the ocean. (Seattle Repertory Theatre, 155 Mercer St, 443-2222. 2 pm, $15–$55.)