The most classical tour in Slovenia begins from its castles, that with the variety of their styles and position in the landscape characterize in a particular way the regions of the Country, from the rough medieval aspect of the castles of Celje and Socerb to the artistic refinements of Olimje and Brezice, and to the most enchanting sceneries of Otočec, Mokrice and Kostanjevica.

There are many of castles and buildings most of all today hosts museums and galleries of art. Of particular interest are the two castle-hotels that make possible to their guests to live the atmosphere  of the past times. The first and only castle by a river is  Otočec, on the river Krka, the other one it is Mokrice, the only castle where is still preserved the drawbridge. The two castles stand next to the thermal baths (respectively next to Dolenjske Toplice and Terme Čatež). Next to the castle of Moktrice is also placed a prestigious sweater field.

Among the better preserved residences in Slovenia the castle of Ptuj must be remembered, symbol of the city, the castle Tabor Laško, where take places cultural culinary art events, the castle of Predjama, dugged in the rock, whose rooms with secret passages are connected to the Karst caves, the castle of Bled, on peak above the homonymous lake where can be enjoyed of a wonderful panorama of the Alps Giulie.
The castle of Podsreda, that has not changed the image of the XII century; and still, the castle of Dobrovo in the middle of the Collio Goriziano, where concerts of classical music are organized, the castle of Bogenšperk, in which the historiographer Valvasor already in the XVII wrote The Gloria of the Dukedom Carniolano, a vast collection of historical and topographical studies unique in the Europe of that times. The great part of the castles besides the museums and galleries of art also houses restaurants and attractive rooms for marriages.

Finally the castle of Rihemberk, next to Nuova Gorizia (Nova Gorica) built in 1200. Beautiful castle wanted homonymous nobles which passed various times under the role of local feudatories, who had introduced a proper style according to the period of ownership; the round tower was built in the XIII century, the more characteristic and imposing of the castle, around which was erected a residence in Baroque style, by the boundaries in Renaissance style and small round towers of the XVI century set in the angles of the fortified walls.