The Church of St. Sulpice, built in the seventeenth century, is the second largest church in Paris. An important Roman Catholic church, it is home to a very impressive Gnomon, an astronomical measurement device which was installed so the bells could be rung at exactly the most appropriate time of day. The church is famous for its Great Organ, revered as the most impressive instrument of the romantic French Symphonic Organ Era. There have been a few modernizations over the years but overall it is nearly exactly the same as when Aristide Cavaillè-Coll reconstructed it in 1862. This is a beautiful venue with lots of atmosphere and a special appeal to any organ enthusiast. Paris