Located 16 kilometres from Belgrade, Avala Mountain is a true green oasis and perfect place to relax and enjoy nature. At the summit of the 506-metre-high mountain, there is a Monument of the Unknown Hero built by the famous sculptor Ivan Meštrović, on the site of the old mediaeval fortress Zrnovo.

You can visit the final resting place of Tonga's royalty at this site. While you can only see the tombs from a good distance, it's worth visiting the area as there is also a small church and park nearby.

This beautiful example of Spanish colonial architecture contains a small museum dedicated to the Spanish Inquisition's brutal persecution of heretics once carried out in these very chambers. Visitors can still see some of the torture devices used to extract confessions of heresy and witchcraft, along with some of the questions used in "witch" interrogations, which are still displayed on the museum wall. Needless to say, no prisoner could hope to be acquitted of their purported crimes against the Catholic Church, and most met their tragic end at the very guillotine still on display in the courtyard.

In 1928, the famous artist Ivan Meštrović designed a sculpture for the drinking fountain on Terazije. The public was against having a nude male figure set up in the city centre, however. After World War I, the project was cancelled and thus the Victor was set up on Kalemegdan instead. The plato next to the monument is among the most crowded places in the city, where visitors love to take photos and enjoy the view over New Belgrade and Zemun.