UNESCO World Heritage site ~15 min from San Miguel with breathtaking ceiling and wall frescoes covering every surface — often called the Sistine Chapel of Mexico. Entry free; small donation appreciated. Older kids who enjoy art and history are genuinely stunned by the scale of the interior paintings. The small adjacent village has simple restaurants and a market with regional sweets.

Address: Santuario de Atotonilco s/n, Atotonilco, Gto.

Google Maps: Click here for directions

Cost: Free