You'll want to browse the collections at Museum of the World Ocean, B-413 Submarine Museum, and Bunker Museum. Ruins of Koenigsberg castle, Brandenburg Gate, and Timber Bridge are monuments to see when you're exploring the area around Queen Louise Kirsch Puppet Theater. You can catch a show at Kaliningrad Regional Drama Theatre, Kaliningrad Regional Musical Theatre, and Kaliningrad Regional Youth Theater for Young Spectators.