An important square in Vieux-Montréal (Old Montréal) is Place d’Armes. It’s the second oldest public square in the city. In the center is a monument to Paul de Chomedey, the founder of the city in 1642.
The most prominent building on the square is Basilique Notre-Dame de Montréal, one of the most beautiful churches in the world. Completed in 1829, it replaced an older church built on the same site in 1672. Admission as of September 2016 is CAD$5, with guided tours available for CAD$10.
Worth visiting in the church is the Chapelle Notre-Dame du Sacré-Cœur, a gorgeous chapel.
Next door to the basilica is the Vieux Séminaire de Saint-Sulpice, a seminary that is also the second oldest structure in Montréal. It was built in 1687. The clock, installed in 1701, and the 17th century gardens are some of the oldest in North America.
Other significant buildings surrounding Place d’Armes are the Banque de Montréal (BMO) headquarters (1847), the New York Life Building (1887), and the Aldred Building (1931). The Banque de Montréal includes a museum that features exhibits on the history of the bank. Admission is free and it’s open during regular bank hours.