You might want to spend some time browsing the exhibits at Sukachev Fine Arts Museum, Baikal Museum, or City History Museum. Roman Catholic Parish of the Assumption of the Virgin, Volkonsky House Museum, and Irkutsk Regional Memorial Decembrists Museum, Volkonsky House are landmarks that you won't want to miss. You can watch performances at Irkutsk Musical Theater, Okhlopkov Drama Theater, and Irkutsk Academic Drama Theater if you're interested in local theater.