The Santo Domingo Convent, usually visited for its cloisters, is one of Jerez's strongest pieces of medieval architecture. The Gothic stonework feels severe and elegant, a useful contrast to the city's sherry bodegas, horse shows, and broad sunny squares.
Today the cloisters often serve as an exhibition and cultural space, so the mood depends on what is installed when you visit. Even without an event, it is worth stepping in while walking between Alameda Cristina and the historic centre.