Oneindig Noord Holland / Stelling van Amsterdam: Noordfront

Stelling van Amsterdam (Defense Line of Amsterdam) was a ring of batteries, fortifications and inundation areas around Amsterdam, built between Many forts can still be visited today.

Kaart van Haarlem 1575

Map of Haarlem. The map is from 1575 and was created by Braun and Hogenberg, for the atlas Civitates Orbis Terrarum wikipedia commons c cb Haarlem_1612_Guicciardini_Blaeu.jpg

Map of Haarlem, the Netherlands from 1612 by Guicciardini Blaeu.