The Oldest Buildings in the World

20. Thracian Tomb of Kazanlak (300 BC), Bulgaria

As we approach the ages of history, another monumental tomb dating back to 300 BC is being added to the list from Bulgaria, the structure has also been inscribed on the UNESCO World Heritage List.

Classically, it consists of a narrow corridor and a round burial chamber.

The walls are decorated with details of Thracian civilization. These drawings are considered to be the most valuable works of art from the Hellenistic period in Bulgaria.

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