Visit the exhibitions in St. Martin’s Tower and enjoy a picturesque, beautiful panorama over Bregenz and the Upper Town, the Pfänder, Bregenz’s local hill, the Swiss mountains and of course Lake Constance from the window gallery. Bregenz’s landmark is in truth unique. A warehouse from the time of the city’s foundation c. 1250 originally stood there, which was barely higher than the city wall.
he warehouse had a basement, a ground floor higher up and an upper floor. As early as the first half of the 14th century, there was a small chapel room in the upper floor that was separated with wooden walls. In 1362, Count Wilhelm III of Montfort founded St. Martin’s Chapel, which, in the subsequent years, was furnished with magnificent frescos and expanded across the entire upper floor. In the late 15th century, the previously secularly used ground floor was integrated into the chapel room, with the ceiling being torn out, making the room approximately twice as high.
https://www.bregenz.travel/en/tourism/experience/tourist-attractions/st-martins-tower/