Tumuli are ancient burial mounds, often constructed from earth and stones, that serve as tombs for the deceased. These structures can vary in size and shape, depending on the culture and time period. They are commonly found in various regions around the world, including Europe, Asia, and the Americas, and are associated with different civilizations. The construction of tumuli dates back thousands of years, with some of the oldest examples linked to the Neolithic and Bronze Age cultures. Archaeologists study tumuli to gain insights into the burial practices, social structures, and beliefs of the societies that built them.