One of the few places of worship in Bavaria to charge admission, Rothenburg's Jakobskirche (adult/child/student/family €3.50/free/2/7) was begun in the 14th century and finished in the 15th. The building sports some wonderfully aged stained-glass windows, but the top attraction is Tilman Riemenschneider's Heilig Blut Altar (Altar of the Holy Blood). The gilded cross above the main scene depicting the Last Supper incorporates Rothenburg's most treasured reliquary – a rock crystal capsule said to contain three drops of Christ's blood.
The church also has one of Bavaria's largest and most impressive organs (which, unusually, can be played from both sides), and to hear it played is a Rothenburg highlight. Ask at the church or Tourist Office about the free concerts that run throughout the year, including nightly performances during the pre-Christmas Advent season.