This is the Altar of the Poor Clares from 1350 and is the oldest remaining sacrament altar with a permanently fixed tabernacle.
The rods below indicate how long the current Archbishop's tenure has been.
The sculpture in the center is from the 1600's.
This is the monument of Archbishop Phillip von Heinsberg and dates back to about 1300 and depicts the Cologne medieval city wall.
The chapel of the three magi
The stained glass window above the chapel of the three magi is the oldest in the Dom and dates back to 1265 the windows to the left and right are from 1330.
Behind the scaffolding is the shrine of the three magi which is believed to house the bones of the three wise men.
In the background you can see workers refurbishing the wall painting which is originally from the 1300's
Time has worn away most of the work from these paintings