The largest collection of Christian holy relics outside the Vatican is located in?

St. Anthony’s houses the largest collection of Christian relics outside of the Vatican. The collection is comprised of around 5,000 relics, the majority of which are classified as first and second class relics. The collection includes everything from holy cloth to the entire skeleton of St. Demetrius.During the 1870s especially, his agents were able to collect hundreds upon hundreds of relics and ship them back to him in the United States. In 1880 he built St. Anthony’s as a home base for his rapidly growing collection of relics and then expanded it in 1892 to house even more.