When "Les Miserables" came to the Mechanic Theatre two years ago, it looked and sounded better than any show ever had there. Now this musical adaptation of Victor Hugo's 19th century epic novel has returned, and although a few of the performances don't shine as brightly, the overall effect is as breathtaking as ever. Weekend show times are today at 2 p.m. and 8 p.m. and tomorrow at 2 p.m. and 7:30 p.m. Tickets are scarce, but a few are still available. Prices are $43.50-$48.50. Call (410) 625-1400. "Mining the Museum" is Fred Wilson's fascinating, trailblazing installation that takes up the entire temporary exhibition floor at the Maryland Historical Society. Drawing on the society's entire, wide-ranging collection, Wilson has used everything from paintings to pikes, from a sedan chair to a whipping post, from duck decoys to broadsheets seeking runaway slaves, to create a work about the African-American and American Indian experience in Maryland, and how the historical society's collection does and doesn't reflect that experience. A joint project of the society and the Museum for Contemporary Arts, this is like nothing that has ever been seen before and it must be seen -- by everyone. It runs through May 30. Call (410) 685-3750.