[madhouse]

There is no single code or project that I could name. Not because there are no open source codes or projects that weren't worth reading, because there are thousands of them. I couldn't name any, because people are different, and what one finds good and worthy code, the other finds rubbish - thus, there can be no single project that would make every reader happy.

On the other hand, if you look at the question in a different way, you could say that the code (be it open source or not) every programmer must read before his end, is his own. As one looks at his life in one's deathbed, so should a programmer look at his code.