The market municipality of Großklein comprises the cadastral municipalities of Burgstall, Goldes, Großklein, Mattelsberg, Nestelberg, Nestelbach, Mantrach, Oberfahrenbach as well as the associated localities of Kleinklein and Wippelsach. The core of the municipality is made up of the two towns of Großklein and Kleinklein, which are located in the Saggau Valley. Prehistoric finds in large numbers prove that this is an ancient settlement ground. The Hallstatt Museum in Großklein, an archaeological themed hiking trail with numerous display boards and an authentically reconstructed Hallstatt-style farmstead on the Burgstallkogel hill take you into the past of our municipality.
The parish church, dedicated to St. George, was built in its present form in the second half of the 17th century, whereby structural elements of the older church (1447), such as the north tower, are still preserved. 70 small and medium-sized businesses, 30 accommodation businesses, numerous sports and leisure time offers, 3 museums, 24 agricultural and forestry companies, including 75 larger and smaller wineries and 10 wine taverns, ensure that residents and guests feel right at home here on the Styrian Wine Country Cycling Tour.