If your trip to Belgrade is all booked but your travel itinerary is a little on the empty side, we can give you a few hints and tips.Discover the best that this place has to offer by adding Republic Square and Kalemegdan Citadel to your schedule. If you've got an extra day handy, drop by Church of Saint Sava and Kombank Arena as well.Stop by Knez Mihailova Street. It's one attraction you'll find on many visitors' must-do lists. Nikola Tesla Museum and Belgrade Zoo are also nearby and worth taking the time to see.