It was their symmetry. They are each between 15 and 20 inches [38 - 51 cm] across, their tops seem to be flat, and every one appeared to have six sides.
Sammaste läbimõõt on umbes 40 – 50 sentimeetrit, nende tipud näivad olevat lamedad ning meile jäi mulje, et kõigil sammastel on kuus tahku.