Ancient burial mounds, also known as tumuli or barrows, are earthworks created to honor and inter the dead. These structures vary in size and shape, often made from soil, stones, or a combination of both. They were built by various cultures around the world, including the Native American tribes and the Celts, serving as final resting places for important individuals or groups. These mounds often contain grave goods, such as pottery, tools, and jewelry, which provide insights into the beliefs and practices of the societies that constructed them. Archaeologists study these sites to learn about ancient cultures, their social structures, and their rituals surrounding death and the afterlife.