Kaliningrad (Königsberg before 1945)is a seaport city and the administrative center of Kaliningrad Oblast, the Russian exclave between Poland and Lithuania on the Baltic Sea.The most European city in Russia and also have no boarders with "Big Russia". Kaliningrad Known as a place where the grave of Immanuel Kant is.The city is full of museums of different types.Summer time is the best period for visiting as far as in summertime a lot of festivals are helding here and it would take you only 30min to reach a seaside by bus.