There are over 5000 bones and skulls displayed on the walls and ceilings of the church, and the most curious thing is the way they are arranged in a specific order. For example, the skulls are lined up to make a row, and the hip bones form a pattern of their own.
Aside from the chapel, the village itself is worth a visit. Although you're only a few miles from popular Algarve tourist destinations; the narrow cobbled streets and the cafes, and local restaurants make you feel like you're taking a step back in time!
The village of Alcantarilha can be reached by travelling along the A22 in Southern Portugal. You reach the Chapel of Bones from the EN 125. It's around 15 kilometers from the town of Albufeira.