Ambigrams

What’s an ambigram?  An ambigram is text written so that it has symmetry — meaning that if you rotate it, it will read the same upside down as it does right-side up.

TuvaA

Tuva ambigram (c) 1999 by Hud Nordin

FeynmanA

Feynman ambigram (c) 1999 by Hud Nordin