The St. John's Co-Cathedral Museum is the spiritual and cultural heart of Valletta. Built in the 16th century as the main church for the Knights of the Order of St. John, this cathedral hides an incredibly lavish interior, considered a masterpiece of the High Baroque, behind its austere, almost fortress-like facade. It is a place where the history of chivalry meets the greatest achievements of world art.

The museum houses priceless treasures that Malta is rightfully proud of. The collection's primary assets are authentic masterpieces by Caravaggio, as well as a series of grand Flemish tapestries based on sketches by Peter Paul Rubens. Every inch of the cathedral—from the painted vaults to the unique inlaid marble floor—tells the story of the Hospitallers' power and piety.
Today, this site is one of the most visited attractions in Europe. Visitors are drawn not only by the temple's religious significance but also by the chance to see eight magnificent chapels, each decorated in honor of the various national divisions of the Order, turning the cathedral into a true pantheon of European history.