An animated GIF of a <a href="https://en.wikipedia.org/wiki/tesseract" class="extiw" title="w:tesseract">tesseract</a>.
<a href="https://en.wikipedia.org/wiki/User:JasonHise" class="extiw" title="w:User:JasonHise">Jason Hise</a>
2007-02-21
<span class="int-own-work" lang="en">Own work</span>