The Basilica, which towers on the Martinsberg, is the landmark of Weingarten and the largest baroque church north of the Alps and the second largest church in Germany after the Cathedral of Cologne. It is sometimes called the "Swabian St. Peter's", designed to be one-half the size of the Vatican’s St. Peter's Basilica in Rome.

The Basilica of Weingarten - dedicated to the patron saint of Weingarten, Saint Martin - is an impressive structure that dominates the skyline of Weingarten. The Basilica offers a magnificent baroque architecture and is considered one of the most immaculate examples of baroque buildings in Germany. The interior of the Basilica is as splendid as the exterior, with stunning woodwork and sculptures adorning every corner of the church. The present church was built between 1715 and 1724 in the Italian-German baroque style from architectural plans by Franz Beer.