St. Mary's Church in Negombo is a significant Roman Catholic landmark known for its grandeur and historical significance. Located in the heart of Negombo, this church stands out with its neoclassical style, adorned with columns, plain walls, and stunning alabaster images of saints on the ceilings. The unique paintings depicting the life of Christ were done by a local Buddhist painter, adding to the cultural fusion seen in the architecture. With construction starting in 1874 and completing in 1922, St. Mary's Church is a must-visit for those interested in exploring the rich religious and architectural heritage of Sri Lanka.