Eggenberg Palace in Graz is Austria's most significant Baroque palace and a UNESCO World Heritage Site recognized in 2010. Designed by Italian architect Pietro de Pomis in the 17th century as the residence of Imperial Governor Hans Ulrich von Eggenberg, the palace features extraordinary numerical symbolism with 365 windows, 31 rooms per floor, and 24 state rooms representing the Gregorian calendar. The palace showcases over 500 ornate ceiling paintings, the renowned Planetary Room, and three museums including the Alte Galerie with masterworks by Cranach and Bruegel, an Archaeology Museum, and a Coin Cabinet, along with extensive historic gardens.
