De Nieuwe Hollandse Waterlinie

De Nieuwe Hollandse Waterlinie is a historic defense system in the Netherlands designed to protect against invaders. It consists of a series of canals, waterways, and water management structures that can flood certain areas to create a temporary barrier. When needed, these waters are controlled to flood low-lying land, making it difficult for enemies to advance. Today, it's recognized as a cultural heritage site, demonstrating innovative Dutch water engineering and strategic planning. The line also serves as a natural habitat and recreational area, blending historical significance with modern ecological and leisure functions.