The Castle Church, known as Schlosskirche in German, is a historic church located in Wittenberg, Germany. It is famous for its association with Martin Luther, who is said to have nailed his Ninety-Five Theses to its door in 1517, marking the beginning of the Protestant Reformation. The church features a beautiful Gothic architectural style and is part of the Wittenberg's Historic Center, a UNESCO World Heritage site. Inside the Castle Church, visitors can find impressive stained glass windows and a notable altar. The church also houses the tombs of Martin Luther and Philip Melanchthon, another key figure in the Reformation. Today, it serves as a place of worship and a popular tourist destination, attracting those interested in religious history.