Built between 1902 and 1906, Sibiu’s enormous Orthodox Cathedral was, surprisingly, designed by two Budapest-based Hungarian architects, Virgil Nagy and Iosif Kamner. The ornate exterior (two colours of pressed stone set in horizontal stripes) is complemented by a wonderful interior, possibly the most extravagantly decorated of any church in Romania. Its centrepiece is a huge dome boasting colourful mosaics painted in Munich, although the gargantuan golden altar will not fail to catch your eye. Later additions include paintings from the 1950s by Ioan Köber and Anastase Demian, including the impressive frescoes at the altar.