In the centre of the Mexican town of Mitla stands a run-down chapel on an overgrown pre-colonial pyramid. The chapel, housing three crosses, is the town's Calvario, the local representation of the hill on which Christ died. Although busses full of tourists on their way to Chiapas or on daytrips from Oaxaca City swarm the town every day almost none of them ever visit the Calvario. Instead they stick to the tourist zone to marvel at the famous mosaic friezes of the pre-colonial temples and shop...