Sources and image credits
Amersfoort between the Koppelpoort and Lange Jan: two monuments, two stories
Source
Image credits
The Koppelpoort combines a passage over land with a passage over water.
Photo: Amsterdamian / Wikimedia Commons · CC BY 4.0 · source
A close view of the façade of the Tower of Our Lady.
Photo: Zairon / Wikimedia Commons · CC BY-SA 4.0 · source