circular, stone structure located in the city of Luján de Cuyo, Argentina (latitude: -33

circular, stone structure located in the city of Luján de Cuyo, Argentina (latitude: -33.006, longitude: -68.866). The structure consists of a central, round stone topped with a slightly conical, round, grey stone. The structure is surrounded by a concentric circle of ten stone segments, separated by grooves. The stone segments are rough, gray, and uneven. The structure is situated in a dry, dusty area with a few trees and shrubs in the background. The ground is covered in small, loose stones and dried vegetation. There is a distinct shadow cast by the structure on the ground to the right. The image is taken from above, looking down on the structure. There are no people in the scene.