helepolis
helepolis is a siege tower or weapon family.
Overview
Hellenistic siege engine.
In detail
It is associated with Ancient Greece.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Helepolis”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q333597: helepolis
Consult the source