St. Augustine's Monastery - Credit: Wikimedia Commons
St. Augustine's Monastery (German: Augustinerkloster) in Erfurt, central Germany, is a former church and monastery complex dating from the 13th century. The site is almost in size. It was built by Augustinian friars, an order of the Catholic Church. It is most well known as the former home of Martin Luther (1483–1546), the father of the Reformation, who lived there as a friar from 1505 until 1511. Read more on Wikipedia
Source: en.wikipedia.org