In Batopilas Canyon, the deepest of the Copper Canyons in Chihuahua, MX, there is a tiny town with a beautiful church, known as the Lost Cathedral. A couple of centuries ago, all records of this church were lost in a fire, and apparently even the Catholic church forgot about it. The people of the town have kept it up and it was recently updated, painted, and repaired. It sits like a little jewel above the river.
The church was locked but our guide asked around and got a key so we could go inside. It was simple and white, benches pushed aside, with hand crafted saints and primitive ladders leading up to the choir loft and bell tower.