Seven years after the unification of Buda, pest and óbuda, in 1880, the national Assembly adopted a decision to build the Parliament building to highlight the sovereign right of the Hungarian nation. A competition was announced, which was won by architect Imre Steindl, but have been implemented and some of the ideas of two other participants in the building of the Ethnographic Museum and in the building of the Ministry of agriculture. In 1885 construction began, the first session of the State Assembly was held in the building in 1896, during the celebration of the 1,000 th anniversary of the Finding of the Motherland. The construction of the Parliament building was completed in 1906, it Should be noted that at the time of completion of construction, the project architect was blinded.

Parliament house is a symbol of Budapest built in the eclectic style – it can be traced elements of Gothic, Baroque and Renaissance. The staircase with frescoes by károly Lotz, the visitor enters the domed hall where the height is 27 m. From 1 January 2000 here lie the Holy crown of Hungary and the coronation regalia.