Собор Святой Марии, Королевы Мира и Святого Иакова в Монреале

Mary, Queen of the World Cathedral or in full Mary, Queen of the World and St. James the Great Cathedral is a minor basilica in Montreal, Quebec, Canada, and the seat of the Roman Catholic Archdiocese of Montreal. It is the third largest church in Quebec after Saint Joseph's Oratory (also in Montreal) and the Basilica of Sainte Anne de Beaupré east of Quebec City. The building is 101 m (333 ft) in length, 46 m (150 ft) in width, and a maximum height of 77 m (252 ft) at the cupola, the diameter of which is 23 m (75 ft). The church is located at 1085 Cathedral Street at the corner of René Lévesque Boulevard and Metcalfe Street, near the Bonaventure metro station and Central Station in downtown Montreal. It and the connected Archdiocese main buildings form the eastern side of Place du Canada, and occupies a dominant presence on Dorchester Square.

The construction of the cathedral was ordered by Mgr. Ignace Bourget, second bishop of Montreal, to replace the former Saint Jacques Cathedral which had burned in 1852. His choice to create a scale model of Saint Peter's Basilica in Rome was in response to a rivalry with the Sulpician order who had been the feudal seigneurs of Montreal, and with the Anglican Church, both of which favoured the Neo Gothic style instead. The site also sparked controversy due to its location in the western part of downtown, in a then predominantly English neighbourhood far from the homes of the French Canadian church goers. The first architect, Victor Bourgeau, refused the project after studying St. Peter's, saying that it could not be reproduced on a smaller scale. At the time, the Holy See and the Papal States were threatened by the nationalist troops of Victor Emmanuel II, king of Piedmont, who was attempting to assert control over all Italy. The undeterred bishop Bourget reacted to these events by sending a total of 507 Canadian Zouaves to defend the Papal territories in Italy, whose names are engraved in gold letters on the marble slabs in the cathedral. Their motto is: "Love God and go your way." A painting depicting Colonel Athanase de Charette, commander of the Papal Zouaves, was made in 1885 by Lionel Royer. Fr. Joseph Michaud, the chaplain of the Papal Zouave volunteers of Montreal, was sent to Rome to secretly produce a scale model to work from. Work began in 1875 and the new church was consecrated in 1894 as Saint James Cathedral, after Saint James the Great, the patron of the parish the church served. At the time it was the largest church in Quebec. It was made a minor basilica in 1919 by Pope Benedict XV. It was rededicated in 1955 to Mary, Queen of the World, by Pope Pius XII at the request of cardinal Paul Émile Léger. (The pope had proclaimed this title for Mary in his 1954 encyclical Ad caeli reginam.) Between 1955 and 1960, several restoration works were executed. On March 28, 2000, the cathedral was designated a National Historic Site of Canada. as of 2003, the cathedral's esplanade and narthex have undergone significant reconstruction. The exterior statue of Bishop Ignace Bourget was cleaned and restored in 2005.

A small chapel is dedicated to baptism ceremonies. The marble baptismal font is mounted on a stucco crucifix sculpted by Louis Philippe Hébert.

The burial chapel, completed in 1933, is located on the east wall of the building, east of the nave, halfway between the main entrance and the altar in the centre. The tomb of Mgr. Bourget, an art work which was created in Rome, is located in the centre. The remains of the bishop that lay in a crypt under one of the pillars in the cathedral were transferred to his tomb on April 27, 1933. The titular bishops are buried on the west side and the auxiliary bishops on the east hand side. The walls and floors are made of marble imported from Italy and feature several mosaics. The bronze plaque above the altar depicts St. Peter's Basilica in Rome. Since the cathedral was running out of space for burying auxiliary bishops, a second chapel was built next to the original one in 2005. Here an additional 15 vaults have been prepared.

This chapel, also known as the Marriage Chapel, is located on the west side of the nave (across from the Bishop's Chapel). This work of art features a wood carved altarpiece, decorated with gold leaf and framing a painting depicting the Assumption of the Virgin Mary. It was made around 1635 at the Benedictine Abbey in Bellelay, Switzerland by a Spanish monk. When the monks were forced to leave during the religious retaliation, the occupying French troops sold all the precious furniture in the Abbey. At the beginning of the 20th century, the Austrian architect conservator Rodolphe Messmer discovered the altarpiece in the church of Suarce, France and acquired it. In 1994, Bruno Messmer donated it to the Roman Catholic Archdiocese of Montreal. In 1957, Cardinal Paul Émile Léger put the chapel at the disposal of the Order of Malta. The stained glass windows are dedicated to this Order.

Covering the altar, which is located under the dome, is a neo baroque ciborium or baldaquin, with twisting columns. It was created in Rome in 1900 by Joseph Arthur Vincent and is a reproduction of the famous 'baldacchino' in St. Peter's Basilica, created by Gian Lorenzo Bernini. It is fully hand made and made with red copper and gold leaf. The angels, garlands and papal insignia were sculpted between 1910 and 1911 by Olindo Gratton. This work of art was a donation to the cathedral by the Sulpicians.

Built by Casavant Frères, the organ was inaugurated on September 22, 1893. At that time, it consisted of 56 stops on three manuals and a pedal board. In 1951 the organ required maintenance, after which it was decided to rebuild the entire organ. Again, Casavant Frères was chosen for the job, and they added 20 stops and a manual. In 1995–1996, the instrument was restored by Guilbault Thérien from Saint Hyacinthe. A few more additions were made, so that now the organ counts a total of 93 stops, four manuals and one pedal board.

The aisles of the nave and the arches in the transept contain painting depicting historical events in the early days of Montreal (called Ville Marie at the time). It contains nine paintings and still three empty spaces. The paintings are:
The aforementioned painting of colonel Athanase de Charette, commander of the Papal Zouaves of Montreal. Work by Lionel Ryder. Marguerite d'Youville singing "Te Deum" to children during the fire that destroyed her hospital on May 18, 1765. Work by Georges Delfosse. Marguerite Bourgeoys teaching her Amerindian pupils in 1694 at the foot of one of the historic towers on ground belonging to the Sulpicians. Work by Georges Delfosse. The martyrdom of Jean de Brébeuf and Gabriel Lalemant in the land of the Hurons. The Iroquois tortured the Jesuit missionaries, of whom de Brébeuf can be seen in the centre with his hands tied to a stake. Work by Georges Delfosse. Father Barthélemy Vimont saying the first Mass in Montreal on May 18, 1642. Paul de Chomedey, Sieur de Maisonneuve and Jeanne Mance, the co founders of Montreal, can be seen attending the Mass. This work by Ernest Laurent was a gift from the French government to Paul Bruchési. The consecration of the Associates of Montreal's project. On February 3, 1641, noble man and women, and priests, who dreamed of founding the city of Ville Marie in New France, attend a Mass celebrated by Jean Jacques Olier in the Notre Dame of Paris to pray for the protection of Our Lady for what many considered to be a "foolish undertaking." Work by Georges Delfosse. The first Mass celebrated at Rivière des Prairies by Father Denis Jamet on June 24, 1615. Joseph Le Caron holds the edge of Jamay's chasuble. Samuel de Champlain, founder of Quebec City, is in the centre. Work by Georges Delfosse. The martyrdom of Nicolas Viel (seen in the boat) and his disciple Ahuntsic (seen already fallen in the water) by three Amerindians on the rapids at the Sault au Récollet. Work by Georges Delfosse. Jeanne Mance, co founder of Montreal, and the nursing sisters of Religious Hospitallers of St. Joseph tend to a sick child Montreal's first hospital, Hôtel Dieu de Montréal. Work by Georges Delfosse.