DONJON Ter HEYDEN

Where: Rotselaar, Belgium

Constructed: 1350-1362

Enlarged: around 1625

Most important renovation: 20th Century

Accessible: yes, but limited

Important fact:

The keep is 30 meters high and has six floors. The top floor with roof was added to the original building around 1625.

https://www.donjonterheyden.be/