You might want to spend some time browsing the exhibits at Bunker Museum, B-413 Submarine Museum, or Museum of the World Ocean. Honey Bridge, Ruins of Koenigsberg castle, and King's Gate are well-known local landmarks worth a visit. You can check out the local talent at Kaliningrad Regional Drama Theatre, Kaliningrad Regional Philharmonic Hall, and Kaliningrad Regional Youth Theater for Young Spectators.