Altogether there were over 1500 city-states in the Greek world, but some of these would ... like Corinth (with about 10,000 citizens), and Argos (with 15,000 citizens) were relatively small.

and the structure of the ancient Greek temple, Heraion of Argos. The gap between the ‘+’ sign and the logo’s edge is half the length of the gap between the ‘+’ sign and the letter ‘T’.