Top 10 Things to See in Montreal

Place Jacques-Cartier is the heart of the Old Montreal - it's a square closed off to traffic that is a great spot for various street performers - musicians, clowns, magicians.
Also, in Old Montreal one can see some of the finest examples of European architecture.
There are many restaurants, shops and museums.

This isn't a usual botanical garden - Montreal Botanical Garden tells stories because there are amazing living sculptures (horticulture works of art).

It's one of the most renowned examples of Gothic Revival architecture in the world built between 1824 and 1829. Rare wood carvings, stained glass windows, wonderful colors and religious statues fill the inside of Notre-Dame Basilica. This beautiful building is associated with the Roman Catholic denomination.

This is a series of interconnected office towers, hotels, shopping centres, residential and commercial complexes, convention halls, universities and performing arts venues that form the heart of Montreal's central business district, aka Downtown Montreal.
It's called Underground City because of the underground connections between the buildings that compose the network, in addition to the network's complete integration with the city's subway (Métro) - an entirely subterranean rapid transit system.
It's very convenient, especially when outside is extremely cold - in the underground city it's warm and you can spend a whole day wearing a T-shirt.

This is the largest church in Canada and the third-largest of its kind in the world after the Basilica of Our Lady of Peace of Yamoussoukro in Co'te d'Ivoire and Saint Peter's Basilica in Rome.
Saint Joseph's Oratory was completed in 1967 and can hold 10,000 people. The church has several levels. It's a Roman Catholic basilica and its architectural style is Italian Renaissance.

It was named after St. Joseph, who was known to perform miracles. The Oratory hosts over 2 million visitors each year, many of whom come looking for healing.

Olympic Stadium is located in this park - it has the tallest leaning tower in the world at 175.5 m (576 ft).

A historic port stretching for over two kilometres along the Saint Lawrence River in Old Montreal. The port dates back to the 1600s when it was used as a trading spot. There are many really old ships. These days it is home to private, freight and cruise ships.
Also, walking along the river is very pleasant.
In winter months there are ice fishing villages built on the ice.

The Circuit Gilles Villeneuve is a motor racing circuit, located in Parc Jean-Drapeau. Formula 1 fans know it, Gilles Villeneuve was a F1 driver.

A very pleasant place to spend a whole day.

Habitat 67 is a housing complex built for World's Fair 1967 (Expo 67), now considered to be a world-famous architectural landmark. This apartment complex has a very interesting style and was designed by Israeli-Canadian architect Moshe Safdie.