Veliko Tarnovo - medieval capital of Bulgaria and home to Tsarevets Fortress, the strongest Bulgarian fortification of the Middle Ages

Sofia - a city of many colours reflecting its rich past

Nis - the third largest city in Serbia, nowadays a bustling, modern city with a youthful vibe

Danube Cauldrons - the most spectacular natural part of the Danube River

Hunyad Castle, listed among the 7 wonders of Romania

Brasov - the second most visited city in Romania with a distinct medieval ambience

Bran Castle - a mysterious 13th-century hilltop, famously known as the Dracula's Castle