Yep. Aaages ago, as a graduation present to myself.
CHC-BNE-SIN-BKK-CPH-BGO-(CPH)-EWR-MEX-HAV-MEX-GDL-TIJ; SAN-LAX-HNL-AKL
In 2003 on a Star Alliance RTW ticket.
My 'regular' return tickets were RTW as well sometimes, but I'm not counting them.
Highlights were BKK, SAN, MEX and everything in Cuba. TIJ was only a transit point to cross the border to SAN, back when Mexicana belonged to Star Alliance :-D