You'll want to browse the collections at Baikal Museum, Volkonsky House Museum, and Geological Museum. Irkutsk Academic Drama Theater, Irkutsk Regional Memorial Decembrists Museum, Trubetskoy House, and Roman Catholic Parish of the Assumption of the Virgin are monuments to see when you're exploring the area around Kirov Square. You can watch performances at Irkutsk Musical Theater, Okhlopkov Drama Theater, and Cheremkhovo Drama Theater if you're interested in local theater.