9 named features carry the IAU descriptor Mensa — a flat-topped elevation with cliff-like edges on Io, out of 50 in the mapped Solar System.
The IAU assigns each feature class on each world a naming theme. Across the 9 mensae with a recorded origin, 3 categories appear, led by Greek.
Every one has its own page, on the surface it sits on.
The same descriptor is used on 2 other worlds, for 41 more features.