Built from 1765-1788 with funding from the rich silver mines, this is considered to be one of the best examples of Mexican Churrigueresque architecture. Particularly noteworthy are the finely-carved, elaborate altars covered in gold leaf.

Church of San Cayetano Confesor

Small museum about the Spanish Inquisition, displays feature a number of macabre torture devices.

Museo Casa del Purgatorio

Features dungeons and torture instruments. Tour guides are required;;they dress as monks.

Museum of the Holy Inquisition

Mina el Nopal

The richest mine in Guanajuato still in operation today. It supplied enough silver to sponsor the Spanish Empire and its colonies.

Mina de Valenciana