Among probably the most gorgeous places in Jerez de la Frontera is the inside of your cathedral. You can enter the cathedral for the rate of seven EUR (see timetables and costs here) after which you can discover the cathedral, and the many concealed corners (similar to the Treasury) https://gunnerhbtkc.glifeblog.com/26268847/how-much-you-need-to-expect-you-ll-pay-for-a-good-jerez-de-la-frontera-hogar-de-videntes-extraordinarios