During this day tour you will travel through history with the professional lead of your guide. Your journey through time will start from the Roman period, when Nis gave to the world the Roman Emperor, Constantine the Great. You will then continue through the Middle Ages and the period of the Ottoman rule, which left constructions like the Nis Fortress and the Skull Tower, a symbol of the struggle for freedom and independence from the Ottomans, as well as a representation of the violence of the time. The latter of the tour will pay attention to modern history, in particular the period of Nazi occupation of former Yugoslavia by visiting a Nazi concentration camp. Following this concentration camp visit, it will be time for some rest. During this stop you will have the chance to taste typical Serbian cuisine, which is one of the most delicious of the Balkans. You will also have free time for a walk in the historical old part of the old city. At the conclusion of your tour, you will be returned back to your accommodation in Sofia.