This is the interior of Guadix cathedral. It is not always possible to get into the cathedral and you can't guarantee entry unless you go to the museum which is below the cathedral.
Guadix Cathedral, Cathedral of Guadix, or Cathedral of the Incarnation is a Roman Catholic church in Guadix, province of Granada, Spain. Construction of the building began in the 16th century and was completed in the mid-18th century. It is in the Baroque style.
It is not permitted to take photos inside the cathedral.