Important Reminder:The City Guide app will be sunsetting on December 15, 2024, with the web version to follow in early 2025. Please visit our FAQ to learn more or to download our Swarm app.
The Telegraph: 3pm: Wander Kalemegdan, the ruins of a fortress built to keep out the Ottomans, who invaded and adapted it as their own defensive outpost on the hill overlooking the confluence of the Sava and Danube.