8Plovdiv, Bulgaria – Around 6000–7000 BC
Bulgaria’s Plovdiv is one of Europe’s great ancient cities and has an extraordinary archaeological history. Evidence of settlement in the area dates back to the Neolithic period, with estimates reaching approximately 6000–7000 BC.
Today, visitors can walk through a city where layers of history appear almost everywhere. Roman ruins, medieval remains, Ottoman architecture and colorful 19th-century houses coexist within the modern urban landscape.
Its ancient theatre is particularly impressive and remains one of the most recognizable landmarks in Bulgaria.





