You might want to spend some time browsing the exhibits at Kaliningrad Regional Museum of History and Arts, Bunker Museum, or B-413 Submarine Museum. Timber 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 Philharmonic Hall, Art House Concert and Theater Complex, and Kaliningrad Regional Youth Theater for Young Spectators.