Step back in time at this stunning Baroque-style church, a true icon of our historic center. More than just a place of worship, your visit includes a journey through a magnificent library filled with ancient texts. The real highlight for many, however, is the descent into the underground catacombs, where you'll discover the eerie and fascinating ossuaries that lie beneath the city. The guided tour, which is required for entry, takes about 45 minutes and is well worth the small admission fee.