You'll want to browse the collections at Tsiolkovsky Memorial House Museum, Museum of Workmanship Architecture and Daily Life, and A.L. Chizhevsky House Museum. You can catch a show at Kaluga State Drama Theatre, Kaluga Regional Theater for Young Spectators, and Demi Obninsk Experimental Theater. A trip to Rio Shopping Center and Kaluga XXI Century might be just the ticket for souvenir shopping.