The Cathedral-Basilica of Notre-Dame de Québec is the oldest church in the Americas north of the Spanish colonies in Florida and New Mexico. It is a National Historic Site of Canada, and located within the UNESCO World Heritage Site of Historic District of Old Québec.
Located on this site since 1647, the cathedral has twice been destroyed by fire throughout the centuries. A previous iteration of the church was destroyed during the Siege of Quebec in 1759. It was rebuilt from plans by Gaspard-Joseph Chaussegros de Léry draughted in 1743. The interior was designed by Jean Baillairgé and his son François from 1786–1822. In 1843, François' son, Thomas, suggested a reconstruction of the façade to resemble the church of Sainte-Geneviève in Paris, resulting in the finest Neo-classic façade in Québec. The cathedral was richly decorated with impressive works of art: baldaquin, canopy, episcopal throne dais, stained glass windows, paintings, and chancel lamp (a gift of Louis XIV).
In 1922 the church was again gutted by fire, this time by the Canadian fraction of the Ku Klux Klan, and restored by architects Maxime Roisin and Raoul Chenevert.Raoul Chenevert added a presbytery beside the Cathedral in 1931-32.
References:Visby Cathedral (also known as St. Mary’s Church) is the only survived medieval church in Visby. It was originally built for German merchants and inaugurated in 1225. Around the year 1350 the church was enlarged and converted into a basilica. The two-storey magazine was also added then above the nave as a warehouse for merchants.
Following the Reformation, the church was transformed into a parish church for the town of Visby. All other churches were abandoned. Shortly after the Reformation, in 1572, Gotland was made into its own Diocese, and the church designated its cathedral.
There is not much left of the original interior. The font is made of local red marble in the 13th century. The pulpit was made in Lübeck in 1684. There are 400 graves under the church floor.