You might want to spend some time browsing the exhibits at Geological Museum, Baikal Museum or Volkonsky House Museum. Explore landmarks like Irkutsk Academic Drama Theater, Irkutsk Regional Memorial Decembrists Museum, Trubetskoy House and Irkutsk Regional Memorial Decembrists Museum, Volkonsky House. You can watch performances at Cheremkhovo Drama Theater, Irkutsk Musical Theater and Okhlopkov Drama Theater if you're interested in local theatre.