Bogenšperk Castle, Renaissance castle in Municipality of Šmartno pri Litiji, Slovenia.

Bogenšperk is a three-story castle with four wings and towers arranged around an inner courtyard with arcaded passages. The oldest part of the structure is the north tower, which rises above the other sections.

The Wagen family likely began the castle in its current form after the 1511 earthquake damaged nearby Lihtenberk. When Jurij Wagen died in 1630, the line ended and the estate changed hands until Johann Weikhard von Valvasor bought it in 1672. He installed a graphic workshop, library and printing press, but the cost of his book The Glory of the Duchy of Carniola forced him to sell the library and, in 1692, the castle; his family moved to Krško.

The museum holds a superstition and witchcraft collection, a hunting collection, and a reconstruction of Valvasor's study and printing press. A wedding hall and restaurant occupy the first floor, and the park around the castle has a lime-tree avenue.

The site is easy to access and offers views of the surrounding landscape from the upper levels of the castle. Plan to climb stairs if you want to explore the different floors and towers throughout the building.

The printing press and Valvasor's study are reconstructions, not original 17th-century fittings. The well in the courtyard was cut into the bedrock and deepened by Valvasor from its first eight fathoms; he also added the cellars. The southeast tower was once much taller, and after lightning set it alight in 1759 it was never rebuilt to its old height.