Santa Maria della Concezione, Rome: skulls and skeletons of the friars arranged in arches and columns around the walls of the Convento dei Cappuccini. Photograph.

Licence: Public Domain Mark

Credit: Santa Maria della Concezione, Rome: skulls and skeletons of the friars arranged in arches and columns around the walls of the Convento dei Cappuccini. Photograph. Wellcome Collection. Source: Wellcome Collection.