Meet Mark Holderman and Robert Hoffman, the passionate caretakers of Kinderdijk’s iconic windmills. Their dedication ensures that these 18th-century engineering marvels remain standing strong. Once revolutionary tools in the Dutch battle against water, these 19 windmills, part of the largest remaining collection, were designed to pump water from the lowlands and protect the land from flooding. Watch Engineering Europe, Sundays at 8pm on National Geographic UK | National Geographic UK

These 18th-century windmills line the canals of Kinderdijk, working when necessary to drain the land. This picturesque UNESCO World Heritage site is beautifully preserved and demonstrates the engineering prowess of the Dutch people, fending off inundation to allow farmers to work the fertile soil. #EuropeFromAbove is now streaming on Disney and Hulu. | National Geographic History

9.6K views · 409 reactions | Wind your way to Kinderdijk to explore its iconic working windmills and serene Dutch countryside. Celebrate Tulips & Windmills today: https://bit.ly/32UDFuC | Viking | Facebook

22K views · 1K reactions | Did you know that the windmills of Kinderdijk, the Netherlands are UNESCO World Heritage? These windmills were built in the Middle Ages, but these wonders of Dutch engineering continue to function to this day!  Video by @Association of landscape lovers #lovethenetherlands    #1sttheworld | Love The Netherlands | Facebook

5.7M views · 1.3K shares | Is there anything better than the steaming hot & soft idlis with piping hot sambhar and coconut chutney? Yes, there is! Idlis in 2000 different varieties! Tag an idli lover you know! #WorldIdliDay #OMGIndia #IdliDay | HISTORY | Facebook

514K views · 798 reactions | The tropical rattlesnake's tail can rattle 50 times per second, and if that sounds hard to believe, just watch in slow motion. | National Geographic History | Facebook