The oldest of the city parks was created in 1870. It is a green environment within and around the Belgrade Fortress, known as Kalemegdan Park, including the Great and Small Kalemegdan, i.e. the Upper and Lower Town.
Recognizing the exquisite value of the salient ridge of Belgrade, the first Serbian urbanist Emilijan Joksimović proposed the idea that the City Field, Kalemegdan, be turned into a “wondrous park”. The first planting of Kalemegdan was undertaken between 1869 and 1875 and the main Sava Alley was planted in 1886. The monuments erected during the past hundred and fifteen years provide the Kalemegdan Park with a particular value.