Olandia, Resort complex near Lake Kuchenne in Prusim, Poland

Olandia is a Dutch Settler open-air museum on a six-hectare farmstead in Prusim, centred on a manor house built around 1730 and enlarged in the second half of the 19th century by the von Reiche family. Its outer walls are ceramic brick on a stone base, with half-timbered walls inside and a mansard roof. The farm also holds an 1844 granary, an 1847 mill, an 1877 stone building and a late-19th-century Frisian barn.

The property was established during a time when Dutch settlers came to the region and built their own communities. A well-preserved mill building from about 160 years ago comes from this period and shows the building style those settlers brought.

An ethnographic museum on the grounds displays traditional tools and rooms that show how settlers lived in this area. The exhibits tell stories about crafts and daily life from earlier times.

The resort is situated near a lake and the Sierakowski Landscape Park, making it easy for visitors to explore nature. Accommodations, the restaurant, and sports facilities are all on the same grounds, so everything is accessible on foot.

The 160-year-old "holender" windmill standing here was moved from Niegocin near Mława in 2012 and rebuilt with its original parts. It is one of the open-air museum's exhibits, alongside a bread oven and smokehouse, on a farmyard restored to its mid-19th-century form.