Notre-Dame Basilica is a Catholic church located in Montreal, Canada. The basilica was built between 1824 and 1829, and it is one of the most famous landmarks in the city. The basilica is an excellent example of Gothic Revival architecture, which was very popular during the 19th century.

The basilica's interior is particularly impressive, with a high arched ceiling decorated with blue and gold stars. The stained-glass windows are also beautiful, and there are several large sculptures throughout the church. One of the most notable features of the basilica is the Casavant Frères pipe organ, which has four keyboards and 7,000 pipes. The organ is one of the largest in the world and is still in use today.

Notre-Dame Basilica has hosted many important events over the years, including the funeral of former Canadian Prime Minister Pierre Elliott Trudeau. The church is also a popular tourist attraction and offers guided tours for visitors.