Haarlemmermeer Museum De Cruquius

Nicolaus Samuelis Cruquius (born Jug) is the namesake of the pumping station. He lived from 1678 to 1754 and was a Dutch surveyor, hydraulic engineer, cartographer and astronomer. Cruquius, famous for his accurate weather measurements, is considered one of the founders of meteorology. For centuries peat was mined in the low peat area between Amsterdam, Haarlem and Leiden. This created peat lakes, which grew into large lakes as a result of storms. Finally, five lakes merged to form the Haarlemmermeer, the largest inland lake in the Netherlands. In order to drain these areas, work began in 1840 to dig a ring dyke more than 60 km long. The water was removed with this pumping station. Today the no longer actively operated pumping station is a very interesting museum

It is worth visiting; there are demonstrations

Beautiful museum about the origin and drainage of the Haarlemmermeer