The pilgrimage church dedicated to Mary Birnau is a baroque church on the north shore of Lake Constance, between the towns and Nußdorf Uhldingen Mühlhofen in Baden-Wuerttemberg. It was built in 1746-1749 by the architect Peter Thumb for the Imperial Abbey of Salem. Since 1946 she is also the parish and places Deisendorf Nußdorf