The building sits a few metres east of the
10th meridian east longitude, which runs through the city centre. The famous
Arp Schnitger organ of 1693 in the west gallery, with 60 registers and around 4,000 pipes, is the largest
baroque organ in Northern Europe. From 1989 to 1993, the organ was completely restored, and since its rededication at
Easter 1993 it can be heard every Sunday during services. The 34 pictures in the organ gallery are the works of Otto Wagenfeldt and Joachim Lundt. They were created to portray the Bible in illustrations which everyone could appreciate and understand. St. James' has three medieval altars: the Holy Trinity Altar in the Main Choir (c. 1518, the St. Peter Altar in the first south nave (1508), and the St. Luke Altar in the second south nave (1500) that originally comes from the
Hamburg Cathedral. The St. Luke Altar was built by the former Guild of St. Luke. All three were built originally to serve as Roman Catholic altars. Also worthy of notice is the Ministers' Room, which originally served as a library. Since 1543, it has been the collection room of the Cathedral ministers, and was remodelled in 1710. The ceiling murals, with their civic virtues, show the importance of maintaining parish to the city regiment. They were painted, like the landscape paintings on the wall, by Johann Moritz Riesenberger. Coats of arms on the walls name the pastors, vicars, and jurors who have served the parish since the sixteenth century. ==Windows==