The universe is in Graz! It’s no joke, but rather a wonderful example of harmonious architectural skill: Eggenberg Palace on the edge of the city centre. Set within a beautiful park is the main palace, which was laid out as an architectural allegory of the universe. The building represents a precisely calculated cosmos. It was commissioned by Prince Hans Ulrich von Eggenberg from the year 1625 to embody his wish for a harmonious structure, reacting to the chaos of the 16th century.
365 windows, 31 rooms on each floor, 24 state rooms with 52 doors and, in all, 60 windows, 4 corner towers - all allusions to time, to the seasons, to weeks, days, hours, minutes. This number symbolism based on the then new Gregorian calendar is the architectural programme of the palace. Also the paintings in the Planetensaal (Planet Hall), whose decoration was started in 1678, are characterized by astronomical symbolism. https://www.graztourismus.at/en/see-and-do/sightseeing/sights/eggenberg-palace_sh-1199