Above all, thanks to the planned scope of the museum’s work, the 19th-century shape and decoration of the South Gallery was recreated. In addition, a product with a contemporary architectural dimension was created in the North Gallery, while preserving the historical museum solutions. The existing and uncovered wall paintings were restored, the technical structure of the gallery roof was replaced, and the defects associated with the very low insulation parameters of the exhibition spaces and walls of the palace were eliminated. Other effects of the works in the Museum include a significant improvement in lighting, climate and physical security, and other conditions of museum exhibitions. For example, the ventilation, heating, cooling and dehumidification of air will be carried out by means of ventilation and air conditioning units with heat reclamation and full factory automation. On the other hand, the new electrical installation eliminated the fire hazard – the general, evacuation, directional, night and accent lighting systems were replaced. As part of the roof reconstruction, a new heating system for the roof troughs, inlets and rainwater drains has been installed, which will prevent water from freezing and icing over in the winter. Altogether, modernisation and securing works included an area of 647.17 m².