The Montreal Metro is a rapid transit system serving the city of Montreal, Quebec, Canada. Opened in 1966, it consists of four lines and over 68 stations, making it one of the busiest metro systems in North America. The system is known for its efficient service and unique architectural designs, with many stations featuring artwork. The Montreal Metro operates primarily underground, with some sections above ground. It connects various neighborhoods and key locations, including downtown, the Old Port, and Mont Royal. The metro is an essential part of the city's public transportation network, providing a convenient way for residents and visitors to travel.