"Megalthic" refers to large stone structures or monuments, often associated with ancient cultures. These structures, such as stone circles, dolmens, and menhirs, were typically built for ceremonial, religious, or astronomical purposes. They are found in various parts of the world, showcasing the engineering skills and cultural significance of the societies that created them. The term is often linked to the megalithic culture that flourished in Europe and parts of Asia during the Neolithic and Bronze Ages. Notable examples include Stonehenge in England and the Carnac stones in France. These sites continue to intrigue researchers and visitors alike, offering insights into prehistoric human life.