Oplenac is located 80km south-east from Belgrade. It is the historic place of the mausoleum of the Serbian Karađorđević Royal Family. It is known for the St. George Church. Karađorđe had settled here in 19st century, built vineyards and orchards, and established the defence of the nearby Topola town.
The church interior is decorated with mosaics, which depict reproductions of the prettiest frescoes of the Serbian medieval arts. The entire mosaic has 725 painted compositions (in the temple and in the crypt), on which there are 1500 figures. The entire area of the mosaic is 3,500 square metres; with 40 million various coloured pieces of glass, making the most vivid artistic impression.