Yesterday during lunchbreak I walked to the citycenter of Maastricht.
The weather was rather mild for the time of year.
This is a sketch of the backside of the St. Servaas basilica. Actually, it's the entrance side, but the altar side of the St. Servaas is located next to the Vrijthof (a large market square), so everybody consideres that side to be the front.
Here is a drawing of the Vrijthof side: Vrijthof