Old Nikolai Church
When you arrive on the Römerberg, on the southern side of the great square there is the Old Nikolai Church (Alte Nikolaikirche). It was the chapel of the Imperial Court from 1290 until the 14th century. The daily chimes at 9:05am, 12:05pm and 5:05pm are worth hearing.
U 4/5, tram line 11/12 Römer