Comment by seanhunter

Gauss's tombstone actually has a circle[1]. Gauss wanted the heptadecagon (not stellated, a regular 17-gon) but the mason making the tombstone decided it was similar enough to a circle for it not to matter and doing a 17-gon was too hard so he just did a circle.

So arguably the greatest mathematician of all time[2] wanted a particular tribute to something he did while a teenager, felt was one of his greatest achievements (because the problem had been unsolved for over 2000 years) and someone just decided they couldn't be arsed.

The whole thing is described really well here, including showing the full construction https://www.youtube.com/watch?v=EX7U0DGBmbM

[1] Picture here https://www.atlasobscura.com/places/grave-of-carl-friedrich-...

[2] My vote would go for Euler, but a lot of people feel Gauss.