The illumination made of stained glass at the Tokyo Metropolitan Teien Art Museum consists of 5-sided pyramids on each faces of a <a href="https://en.wikipedia.org/wiki/dodecahedron" class="extiw" title="en:dodecahedron">dodecahedron</a>, otherwise known as a <a href="https://en.wikipedia.org/wiki/Small_stellated_dodecahedron" class="extiw" title="en:Small stellated dodecahedron">Small stellated dodecahedron</a>.
<a href="//commons.wikimedia.org/wiki/User:RSSFSO" title="User:RSSFSO">RSSFSO</a>
<span class="int-own-work" lang="en">Own work</span>