I have visited this WHS in September 2016. The Defence line of Amsterdam symbolises the engineering skills of the people from the Netherlands in water management. It also illustrates the spirit and atmosphere existing in Western Europe in the late 18th and early 19th centuries when most of countries were facing internal tensions as well as external pressures, increasing the likelihood of the occurence of a war and making necessary to all countries to erect defence lines and fortifications.

I have visited forts in Weesp, Muiden, Abcoude, Hinderdam and Nekkerweg. Other forts will come during my next trips to the Netherlands.