Part of Bury St Edmunds Abbey, St Mary's church is one of the largest parish churches in England, with one of the longest aisles and the largest west window of any parish church.
It is renowned for its magnificent hammer beam angel roof and its wealth of 15th century woodcarvings and outstanding examples of stained glass.
It was originally was one of three large churches in the town (the others being St James, now St Edmundsbury Cathedral, and St Margaret's which no longer exists). The first building to stand on the site was built in the 12th century, in the 14th and 16th centuries there was a major renovation with the nave, tower and aisles being built. It was during this time that Mary Tudor Queen of France and sister of Henry VIII died, and so was buried in the church. Her tomb is located in the sanctuary next to the north of the Lord's table. In the 16th century, two wealthy local benefactors, died and left large amounts of money to the church which were used to build the north and south aisles, two chantry chapels and a north and south porch (later removed) with St Wolstan's Chapel being added in the 1830s.