Kaltenbrunn Lourdes Grotto and Pilgrimage Chapel Ruins

At the foot of the Neukasteler Berg, just west of the village is the Kaltenbrunn spring. Here there should have been a source shrine already in pre-Christian times. [4] In the Middle Ages, there was a Marian pilgrimage, to the care and organization of 1662 a chaplain was hired. In 1973, the excavation of the foundations of the old pilgrimage church began. In the 1980s, the source gained national recognition and due to the onslaught of visitors followed by a closure. Meanwhile, the source is accessible again.Source: de.wikipedia.org/wiki/Ranschbach

Only the foundations of the former monastery can be seen, but a beautiful Marian grotto.

The Virgin Mary depicted and venerated here is that of Lourdes. This well-known Marian pilgrimage site is located in the French Pyrenees and is visited by a large number of people every year, including many sick people hoping for healing. The devotional image of the Mother of God has spread widely, not only in France, and believers have built Lourdes chapels and grottos everywhere.
The ecclesiastical memorial day "Our Lady of Lourdes" is on February 11th, this is the anniversary of the apparition of Mary (1858), when the Mother of God appeared to the 14-year-old Bernadette Soubirous in a rock grotto not far from Lourdes. Bernadette later became a nun and died at the age of only 35. On December 8 (the feast of the Immaculate Conception of Mary) 1933, she was canonized by Pope Pius XI.
The commemoration of the Lourdes Madonna is also World Day of the Sick.