We opted for this virtual trip as an alternative to a real holiday because travel was not possible due to COVID. It's interesting that we 'went' to Belgrade, Serbia, which we have never been before, and we are pleasantly surprised that the tour was a lot of fun. Our guide, Milan, was very knowledgeable with the history of Kalemegdan Fortress and Serbia. He explained while showing us the view of the fortress through his camera. We learned a lot from the tour and enjoyed the 'walk' around the fortress, which was huge. This makes me want to visit Serbia in person when COVID is over.