The Westerpark area is named after the big park in the quarter, around the Westergasfabriek, a former gas factory, thats now a cultural hotspot for expositions and festivals. The buildings, designed in the Amsterdam School style are constructed in the late 19th or early 20th century. These cost about 320 for 40 sqm, with apartments twice the size starting at 500. For those who want to know more about this school of architecture, there is a museum about it in this quarter. In Westerpark, there are also two famous Dutch windmills, and some military fortresses built in 1900.