Our institute was formed as the National Theatre History Museum in 2nd November 1952. The museum moved to its present residence (District I, 57 Krisztina körút, District I), the Áldássy-mansion. The first permanent exhibition opened in the same year.

The Roman Catholic school was founded by the highly educated land owner Duke Apponyi Sándor in 1877. The building works of the school were finished in 1880. It was functioning until 1976. The building was originally made to have a class room, a chapel and a teacher's flat. The school served for the education of the children living in the region.

The collection plays a dual role. Firstly, information is given to the visitors on the peaceful use of nuclear energy by a permanent exhibition. Secondly, the remembrances of the commissioning and operation period of Paks Nuclear Power Plant and other written and objective documents are collected and displayed, which are in connection with the application of nuclear energy in Hungary.

Up to 1931 the Lutheran Gimnazium (high school) functioned in the building. Between 1835 and 1838 Sándor Petőfi, the famous Hungarian poet was studying here.

From the middle of the 17th century the Angel Pharmacy was run here and pharmacist and physician families lives here. One of its most famous dweller was physician and meterologist Ádám Gensel (1677-1720) orvos meteorológus volt, who discovered the influence of weather fronts on the human sytem. When the Gensel family extended the pharmacy in the 18th century, its front wall legs and the corridor were done away with. The house gained its present form in 1850. After its renovation of 1966-67 the Pharmacy Museum of Sopron was placed here.

The Museum Village of Sóstó is the biggest regional open-air ethnographic museum in Hungary. Ever since it was established (1970) and opened (1979), it received the title 'The Museum of the Year' and became the most often visited museum of Szabolcs-Szatmár-Bereg County. Yearly 70-80 thousands visit it even though it is only open from April until October.

Segesd and its suburbs have been a densely populated place ever since prehistoric times. During the Roman dominion and after the Original Settlement, it was a place where important roads crossed. The chief and tribe leader settled near Segesd in the first half of the 10th century. After the Hungarian constitution, Segesd belonged to the Episcopate of Veszprém. Overseers of the king and later the queen lived in the centre. The royal 'Comitatus of Segesd' of King Béla IV was first mentioned in a charter from 1245, or rather the land of the overseer and his name Mihály, the son of Jákó.