Overview: A look at how the Dutch prevent floodwaters from inundating their low-lying country; the power of Google; wildlife photographer Thomas D. Mangelsen.
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First Air Date: Sep 24, 1968Last Air date: Oct 07, 2024Season: 57 SeasonEpisode: 913 EpisodeRuntime: 44 minutesQuality: HDIMDb: 6.60 / 10 by 65 usersPopularity: 301.265Language: English