Study the collections at B-413 Submarine Museum, Kaliningrad Regional Museum of History and Arts, or Bunker Museum. While you're exploring, swing by Brandenburg Gate, Ruins of Koenigsberg castle, and King's Gate to learn a bit about the area. You can watch performances at Kaliningrad Regional Musical Theatre, Kaliningrad Regional Philharmonic Hall, and Art House Concert and Theater Complex if you're interested in local theater.