Notre-Dame Basilica of Montreal is a Gothic Revival masterpiece in Old Montreal, famed for its deep blue vaulted ceilings, golden stars, intricate wood carvings, and stained glass windows depicting the city’s religious history. Home to a grand 1891 Casavant Frères organ, it welcomes around 11 million visitors yearly. In 2023, it was named the 6th most beautiful building in the world, it remains a powerful symbol of faith, heritage, and architectural brilliance.