In Nidzica, the Nature Observatory based on the greenhouse structure was designed and built by the Agr-Sur company for the Nidzica Development Foundation. The facility of 8 m x 12 m and a total height of 5.2 m will be used for research purposes. The solid structure made of powder coated steel profiles meets all the requirements of Polish standards. The housing was made of aluminium profiles AL, Mg, SI alloys, and the roof was covered with single tampered glass with a thickness of 4 mm, all four sides of it embedded in aluminium system profiles. In the facility, the floor and the lighting installation was also executed.