The Slovenian Geodetic Collection is the central museum geodesy exhibition in the Slovenian territory. It highlights the development of surveying, geodesy and cartography in the Slovenian territory and around the world from antiquity to the present time. The collection was first opened to the public in 1987 in Castle Bogenšperk. In 2006 the collection was partially updated. The original collection was amended with the development of the profession in the last two decades and modernized using multimedia and interactive digital presentation.

From the beginning the collection found its home in Valvasor’s Bogenšperk Castle, where land surveying and cartography began to develop in the Slovenian territory. Valvasor was an important topographer and cartographer, who in the 17th century studied and portrayed the Slovenian territory in topographic pictures and maps. His work easily matches the achievements of the contemporary European cartographers. In 1684, together with his associates, Valvasor made a very important map of Carniola in the copper engraving and printing shop of his Castle Bogenšperk. The map, with minor changes, was afterwards copied by other authors. Valvasor further contributed significantly to the recording of Slovenian geographical names.

The collection is connected with a gravimetric point in the former castle tomb, which at the same time serves as a point for measuring earthquakes in the central Slovenia. In Slivna (Vače pri Litiji), in the immediate vicinity of Bogenšperk, lies GEOSS – the geometric center of the Republic of Slovenia.