Duomo di Torino e Cappella della Sacra Sindone (Turin Cathedral and Chapel of the Holy Shroud), Turin

The burial shroud of Christ had been owned by the Savoys family since 1453. Today it is kept in a glass case in the Baroque Chapel of the Sacred Shroud, adjacent to Turin Cathedral and connected to the Royal Palace of Turin. The chapel was designed by priest and architect Guarino Guarini in the late 17th century. It is a masterpiece of Baroque architecture.

The Turin Cathedral sits on the site of an old Roman theatre. The site originally was a complex of three churches dedicated to the Holy Savior, Santa Maria de Dompno, and John the Baptist. Some sources claim the main church was consecrated by Agilulf, King of the Lombards, who reigned between 590-616. The three churches were demolished by 1492.

Construction of the cathedral, also dedicated to Saint John the Baptist, began immediately. Design and construction by Amadeo de Francisco di Settignano took seven years. The pre-existing bell tower was renovated by Filippo Juvarra in the 17th century. In 1667, the architect Guarino Guarini was invited to complete the Chapel of the Holy Shroud.

Guarini redesigned the dome. He replaced piers inside the dome with ornamental pediments and volutes. He used weight-bearing arches. The top of the dome was done in six levels in a hexagonal plan. Atop is a roof lantern formed in a twelve-pointed star. Inside the star is a cap with the dove figure of the Holy Spirit.