There are several large, ornate churches in Paris that I’d never heard of before I visited. Saint-Sulpice is a Roman Catholic Church a bit away from the main tourist areas but it’s the second largest church in Paris, France, after Notre Dame. The Romanesque church now in this spot (replacing an earlier building) was started in 1646. It features a spectacular Great Organ dating from 1862 and is used for regular organ concerts in addition to Mass.
This church is a little older than the average. Saint Vitus Cathedral is in central Prague and is the third church on this site. Construction of this gothic cathedral started in 1344 when the the King of Bohemia wanted a church for coronations, royal burials, and a treasury for the most valuable relics of the kingdom. Work on different parts of this massive church continued at various times over the next 600 hundred years and was considered finally finished in 1929. There is a lot of history online with more details and a virtual tour on the church’s website. In 1997 the church was rededicated as the Metropolitan Cathedral of Saints Vitus, Wenceslaus and Adalbert.