e.g. – Schloss Eggenberg

Simon Starling & Suuperflex

e.g. A Match Made in Heaven, 2011


As it navigates across Styrian time and space the Super Egg finds itself in the planetary room of the Eggenberg Castle. The design for this cosmic castle was based on the logic of Johannes Kepler’s Grazian epiphany of 1595 that led him to what he believed to be the Universe’s divine geometry and one year later to the publishing of his book Mysterium Cosmographicum. Kepler pursued this thinking by attempting to establish the orbit of Mars and in early 1605, after approximately 40 failed attempts, he at last hit upon the idea of an elliptical orbit. Finding that this idea matched the Mars data he had gathered, he immediately concluded in his First Law of Planetary Motion, that all planets move in ellipses around the sun.


Some 354 years later, in 1959, city planners in Stockholm, Sweden were struggling with the design of a roundabout in their newly constructed modernist urban development, Sergels Torg and decided to announce a design competition. Surprisingly perhaps, the winning proposal came from a little known Danish mathematician Piet Hein. A former student of the physicist Nils Bohr, Hein conceived of a roundabout based on an even more complicated elliptical formula, the Superellipse – this mathematical halfway-house between a square and a circle inviting the cars to move around Sergels Torg in newly cosmic order. By further rotating a Superellipse around its longest axis, Piet Hein then created the Super Egg, a solid egg-like form that could miraculously stand upright.


Design by PIET HEIN © Piet Hein A/S Denmark 
SUPERELLIPSE® Piet Hein A/S Denmark


Kunsthaus Graz

Lendkai 1
8020 Graz, Österreich
T +43-316/8017-9200


Opening Hours
01. January 2020 to 22. October 2020 Tue-Sun, public holidays 10am - 5pm
23. October 2020 to 09. April 2021 Tue-Sun, public holidays 10am - 6pm
10. April 2021 to 31. October 2021 Mon-Sun, public holidays 10am - 6pm
01. November 2021 to 31. December 2021 Tue-Sun, public holidays 10am - 6pm

Architecture tours
Until 04.10.2020 Tue–Sun 11 am (ger)
06.-22.10.2020 Tue–Sun 11, 2 pm, 3:30 pm (ger)
Guided Tours
From 25.10.2020 Sun and public holidays 11am (ger)
Times may vary. For specific dates, please visit our calendar.
Guided tours also on advance notice

Mon-Thurs 9am-11pm
Fri-Sat 9am-1am
Sun 9am-8pm
T: +43-316/714 957



26th October 2020
5th April 2021
24th May 2021
1st November 2021

24th/25th December 2020
1st January 2021 10am - 1pm
1st January 2021 5pm - 6pm
16th February 2021
24th/25th December 2021