You might want to spend some time browsing the exhibits at B-413 Submarine Museum, Amber Museum, or Blindage Museum. Sights like Ruins of Koenigsberg castle, Timber Bridge, and Honey Bridge are must-sees while exploring the area. You can check out the local talent at Queen Louise Kirsch Puppet Theater, Kaliningrad Regional Musical Theatre, and Kaliningrad Regional Youth Theater for Young Spectators.