The Eggenberg Palace is located in which of these countries?

Eggenberg Palace (German: Schloss Eggenberg) in Graz, is the most significant Baroque palace complex in the Austrian province of Styria. With its preserved accouterments, the extensive scenic gardens, as well as some special collections from the Universalmuseum Joanneum housed in the palace and surrounding park, Schloss Eggenberg ranks among the most valuable cultural treasures of Austria. Eggenberg Palace is situated at an elevation of 381 meters (1250 feet) on the Western edge of the city. Its architectural design and the still visible imprint of centuries of history continue to bear witness to the vicissitude and patronage of the one-time mightiest dynasty in Styria, the House of Eggenberg.

In 2010, the significance of Schloss Eggenberg was recognised with an expansion to the listing of the Graz Historic Old Town among the 'UNESCO' (United Nations Educational, Scientific and Cultural Organization) World Cultural Heritage Sites.