Catacombs
Nobles of the 17th and 18th centuries in this area opted to have their corpses mummified. You can visit the somewhat creepy crypt, located beneath a 17th-century Capuchin monastery, to see their preserved remains and hand-woven silk garments. The catacombs are technically open daily (from 9:30 am to 7:30 pm), but it's advised to call ahead to be sure that someone is actually on-site to let you in.