The Museum De Cruquius (or Cruquiusmuseum) occupies the old Cruquius steam pumping station in Cruquius, the Netherlands. It derives its name from Nicolaas Kruik (1678–1754), a Dutch land-surveyor and one of many promotors of a plan to pump the Haarlemmermeer (Haarlem lake) dry. Like many well-educated men of his time, he latinized his name to Nicolaus Samuel Cruquius. During his lifetime the issue of the Haarlem Lake and how to pump it dry was international news