Wikipedia
Túcume is a pre-Hispanic site in Peru, south of the La Leche River on a plain around La Raya Mountain. It covers an area of over and encompassing 26 major pyramids and mounds. The area is referred to as Purgatorio ( purgatory) by local people. This site was a major regional center, maybe even the capital of the successive occupations of the area by the Lambayeque/ Sican (800-1350 AD), Chimú (1350–1450 AD) and Inca (1450–1532 AD). Local shaman healers ( curanderos) invoke power of Tucume and La Raya Mountain in their rituals, and local people fear these sites. Hardly anyone other than healers venture out in this site at night.
The vast plains of Túcume are part of the Lambayeque region, the largest valley of the north coast of Peru. The Lambayeque Valley is the site of scores of natural and man-made waterways and is also a region of about 250 decaying brick pyramids.