You'll want to browse the collections at Museum-House of the Writer Maxim Gorky, Nizhny Novgorod Kremlin, and Gorkovskaya Railway History Museum. Some landmarks that you won't want to miss include Dmitry Tower, Bolshaia Pokrovskaia Street, and Alexander Nevsky Cathedral. You can watch performances at Nizhny Novgorod State Academic Theater of Opera and Ballet, Comedy Theater, and Nizhny Novgorod Academic Puppet Theater if you're interested in local theater.