In Villa di Mezzo (Mitterdorf), a component locality of Caldaro, there's Sallegg Castle, a light yellow manor which rises like a jewel between the houses of the village. It was built in the 16th century as the residence of the Lords von Sall and changed owners a few times before it passed into the hands of Archduke Rainer of Austria, Viceroy of the Kingdom of Lombardy-Venetia, in the 19th century. His granddaughter, I.D. Maria Raineria Lucchesi Palli, Princess of Campofranco, had the property transformed into a castle-like building in the years between 1900 and 1902.

The architect Anton Weber from Vienna proved his skills here when he extended the south wing and gave Sallegg Castle its current appearance. Sallegg Castle (Schloss Sallegg, in German) houses the winery of the Lords of Khuenburg today who store the exquisite wines of the Preyhof, Leisenhof and Seehof estates up to three storeys underground in the vaulted cellars of the castle. Guided tours with wine tastings in the cellars - the fermenting cellar, the wooden barrel cellar and the barrique cellar, which is 11 m underground - as well as walks on the theme path through the own vineyard are offered. The red and white wines, however, can be bought on-site.