Worth seeing and the pride of locals, this lime-mortar church includes fascinating features such as a life-sized sculpture of the Last Supper; Santiago (St James) atop a real stuffed horse, returning from the dead to trample the Moors; creepy catacombs; secret tunnels; a domed tomb topped by a wonderful copy of Michelangelo’s Pietà ; and hundreds of skeletons arranged in a ghoulishly decorative, skull-and-crossbones pattern. It truly has to be seen to be believed. Excellent Spanish-speaking guides are on hand daily.