Visit Cappella Sansevero's 'Veiled Christ', and some spooky anatomical 'machines'.
The Cappella Sansevero is actually a mausoleum created by Raimondo di Sangro, the seventh Prince of Sansevero. He commissioned the 'Christo Velato' (Veiled Christ), sculpted by Giuseppe Sanmartino, which is so realistic in its rendition of Christ (carved from a single block of stone, the body appears to be lightly draped with a veil), that Antonio Canova wanted to buy it for himself. But it's not the only wonder here. There is an underground chamber that houses the skeletons of a man and woman that appear to have had their veins and arteries preserved so that they are visible. A creepy rumour suggests that the 'victims' had not yet died before the experiment was started.