Built in 1860 over another church that was built in 1614, the church of St. Mary is the Parish church of Mosta. The interior of the church is quite impressive with its circular shape and clear interior.

The awesome dome is the fourth largest in the world and famous due to the incident that took place during WWII – a bomb, which pierced the dome in 1942 landed on the church floor and slid across the floor without exploding! The church was crowded when the bomb hit and all were spared. The bomb is now on display in a small museum attached to the church.

Mosta’s titular feast - that of St. Mary or the Assumption of Our Lady is a high point in the local religious celebrations. The Mostin rally in front of the Rotunda is a manifestation of joy, merrymaking and social wellbeing.