The Fortress can be visited
Citadel van 's-Hertogenbosch (Fortress)
The Citadel of ’s-Hertogenbosch is a former bastioned fortress on the outskirts of the city center in ’s-Hertogenbosch, Netherlands. It was built to repel Spanish attacks and to control the city's Catholic inhabitants.
History+
Construction of the citadel, initially named Fort Willem Maria, began shortly after the Dutch capture of the city in 1629 and lasted from 1637 to 1645. To ensure an unobstructed field of fire, the Ortheneind (Het Plein) quarter, along with the St. Peter and Paul Church, was demolished. Towards the end of the 18th century, the pentagonal complex served as a barracks and was expanded in 1848, earning it the nickname Papenbril.
Source: Wikipedia · Licence: CC BY-SA 4.0
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 51.6952, 5.3031