Kinderdijk

Kinderdijk's 19 windmills, built around 1740, form the Netherlands' most densely packed windmill network, draining the Alblasserwaard polder with unmatched efficiency. Unlike typical heritage sites, these mills are twice as effective as modern pumps in low-maintenance operation, saving 40% in energy costs annually. Visitors witness live water management, a 280-year-old method still active today.