
The conventual church of the Order of Saint John, a chivalric religious order, designed by architect Girolamo Cassar and built from 1573, consecrated in 1578, and elevated to a co-cathedral in 1816. Its richly gilded Baroque interior features a barrel vault painted by Mattia Preti with scenes from the life of Saint John the Baptist, around 400 inlaid marble tombstones across the floor, and Caravaggio's The Beheading of Saint John the Baptist.
Photo: Matthew Axiak, CC BY-SA 4.0, Wikimedia Commons



