My wife & I spent several weeks in Scotland some years ago and visited Skara Brae. It was very interesting but the Ring o' Brodgar was unreal. Talk about primative! The ring is found in the Mainland parish of Stenness. Walking around these huge standing stones was awesome.
We hope to return to Scotland for another visit in the next few years. It was great fun, with wonderful people there.
i stayed at a b&b there, you are right about it, non of the stones were very impressive on their out, but the amount was immense, we got up at sunrise to get some pics, it was perfect, there was a mist covering the area with the sunrise and a flock of funny looking sheep still bedded down.