Nicknamed Cojines del Diablo by the Spanish ("Cushions of the Devil"), these two large stone disks are testament to the importance of the worship of the sun god in pre-Columbian times. Dances and, occasionally, the Muiscas' human sacrifices took place here. A particularly bloody ritual consisted of ripping the hearts out of 12 year-old boys and spreading their blood on the Cojines del Zaque to obtain fertile lands and abundant harvests.