You'll want to browse the collections at Kaliningrad Regional Museum of History and Arts, Bunker Museum, and B-413 Submarine Museum. Timber Bridge, Honey Bridge, and Ruins of Koenigsberg castle are notable landmarks to explore if you're in the area. You can watch performances at Kaliningrad Regional Drama Theatre, Kaliningrad Regional Philharmonic Hall, and Kaliningrad Regional Youth Theater for Young Spectators if you're interested in local theater.