The Wignacourt Museum is a stately facility with three levels available to visitors. The lowest, underground, is above all the Grotto of St. Paweł and the labyrinth of corridors and burial sites from Punic, Roman and Christian times. On the ground floor there are administrative rooms and a garden. The exhibition halls on the first floor include an impressive collection of paintings (Mattia Preti, Antoine Favray, Francesco Zahra) and objects of worship, including the reliquary of St. Matthew the Evangelist and a copy of the Shroud of Turin.
The exhibitions at the Wignacourt Museum also display a rich collection of silverware from the 16th to the 19th century, sculptures made of wood, alabaster and bronze, maps and coins. An interesting fact is the portable altar, used to celebrate mass for knights serving in galleries.
Grotto in which St. Paul the Apostle was to live in 60 during a trip to Rome, she became famous and was a place of pilgrimage as early as the 17th century. It happened thanks to the efforts of the Grand Master Alof de Wignacourt, in whose honor the present-day museum was named.