The Valley of the Thracian Kings – This is how they call the Kazanlak Valley, because of the extremely high concentration and variety of monuments of the ancient Thracian culture. Here they are much more than anywhere else in the world. There are over 1,500 burial mounds. According to the researchers, likewise the Valley of the Kings in Egypt, Thracian kings and important representatives of the Thracian aristocracy were buried in the Kazanlak field. All the sub-mound temples are extraordinarily diverse and unique from architectural point of view.