40°16′26″N 1°10′39″W / 40.27383172°N 1.1776241°W
Peñalba de Villastar is a Celtiberian sanctuary in the municipality of Villastar, Aragon, Spain. About 10km south of Teruel, it is located at the eastern edge of Celtic Iberia. The sanctuary is along a cliff 1,500m in length, where soft white limestone and marl rock bears hundreds of inscriptions and graffiti.