The Lyran Giants are one of the oldest (if not THE oldest) humanoid races in our Galaxy. As the name suggest, they originated in the Lyran constellation.
Lyssa Royal: "These entities (physical like yourself, of course) existing in third and fourth density, were Caucasian in type. They were primarily of light skin, light eyes and light hair; the darkest hair would be a medium brown, which was somewhat unusual.
The physical body would be likened to the mesomorph, which is basically a well-balanced, muscular body. The height would be anywhere from six to nine feet tall, depending upon the group of entities we are speaking of, the smallest being at the six-foot range (female as well as a male). These entities developed this size from long periods of genetic development on a planet with higher gravitational fields and a denser electromagnetic envelope, also present in the solar system in general. This added to the creation of a more hearty, shall we say, entity. These entities are reflected in some of the Greek mythology and in some of the biblical stories of giants. This is one of the groups that your civilization still has a cellular memory about. This particular group was one of the primary groups that began forming a God/worshiper relationship with you. Do you follow so far?
This is one of the reasons for some of the expressions in your religious art and architecture (which has very large doors and windows); this patterning with this particular racial structure was very deep within the human psyche. These were the original gods - or at least the ones that made the biggest impression on you. "
[Lyssa Royal: Excerpt of "Galactic Family, An Overview of Genotypes"]