Serbia is beautiful nature, delicious food, and Balkan culture. Visit Belgrade for the museum of Yugoslavia, the Tesla museum and the Belgrade fortress - it signifies how important the city was during the Roman, Byzantine and Ottoman empires. In the east, explore the natural monument the Resavska Pecina cave with 80-million years old it dates back to the Great Ice Age. By the Danube river, discover the natural beauty of the National park Derdap.