Uhm, Holland is here and there below sea level but the rivers aren't. Escher probably could have drawn a map where this could happen, but in reality we still ne

Uhm, Holland is here and there below sea level but the rivers aren't. Escher probably could have drawn a map where this could happen, but in reality we still need the rivers to be higher than the sea. edit: canals and baby rivers are lower indeed, they are pumped out and locked