Take a full-day tour to South Serbia and visit its most famous destinations, the city of Nis and Devil's Town. The tour is led by professional English speaking tour guide. Nis is the largest city in this part of Serbia, known as the birthplace of Constantine the Great. After exploring the city and listening to the story about this famous Roman emperor, the tour continues to Skull tower, where you will learn about The First Serbian uprising against Ottomans in 19th century and its victims.  Finally, explore Devil's Town, a natural monument comprised of two natural phenomena: the soil figures (specific forms of relief) and two springs of extremely acid water with high mineralization. In fact, Devil's Town is a New Seven Wonders of Nature nominee.