Church of Santa Maria la Major

The Basilica of Saint Mary Major, or church of Santa Maria Maggiore, is a Major papal basilica as well as one of the Seven Pilgrim Churches of Rome and the largest Catholic Marian church in Rome, Italy.

The basilica enshrines the venerated image of Salus Populi Romani, depicting the Blessed Virgin Mary as the health and protectress of the Roman people, which was granted a Canonical coronation by Pope Gregory XVI on 15 August 1838 accompanied by his Papal bull Cælestis Regina.

Pursuant to the Lateran Treaty of 1929 between the Holy See and Italy, the Basilica is within Italian territory and not the territory of the Vatican City State.

Source: Wikipedia