Although Belgrade is mostly surrounded with plains, mountain Avala makes an exception. Avala, which lies 15 km south from the city, is definitely favorite relaxing spot for many Belgradians. It is place of historical and cultural significance. Mountain becomes 'alive' especially during spring and fall time, when picnic in shades of the forest represents favorite activity of visitors.
Along the road towards the Avala peak, on the left side lies historical sight - monument dedicated to Russian war veterans who died in an airline accident in 1964. At the very top of the mountain, you will find Monument to the Unknown Hero. It is one of the most notable sights of Avala. Monument, dedicated to victims of the WWI, was built on a place where used to stand fortress Žrnovo. King Aleksandar I of Yugoslavia gave an order to destroy ruins of this former Roman settlement and build the monument in 1934.
While touring Avala, eventually you will get to the pride of Belgrade, Avala Tower. Tower is symbol of Belgrade and with 205 meters, it is the highest structure in Serbia. It was destroyed during NATO bombing in 1999, but later rebuilt and officially opened in April 2010, marking 11th anniversary of bombing of Serbia. Avala Tower has observation deck from which you can see most of the Belgrade surrounding.