Hellenistic is basically a Hellenic-Greek culture at its core with localized partial influences (depending on the area) of: Buddhist-Indic, Syrian-Persian-Mesopotamian, Egyptian, Jewish,...
Yes, after Alexander the Great had established his Hellenistic empire, he somehow managed to diplomatically blend their eastern and western cultures. So, to answer your question, yes, the Hellenistic...
Well I do know of one.Alexandria, Egypt was where the first library was built. It blended Greek and Asian cultures in th eHelinistic Age. By the way im in 6th grade!