we have a few left in the Netherlands "Naarden Vesting" is another prime example.
Bourtange was restored into an open air museum and it's previous standing a few decades ago, after abandonement nearly destroyed the place.
we have a few left in the Netherlands ["Naarden Vesting"](http://rijschooldehoog.nl/img/naarden.jpg) is another prime example.
Bourtange was restored into an open air museum and it's previous standing a few decades ago, after abandonement nearly destroyed the place.
The most preserved example of star fort, I believe.