“A previously unknown Neolithic structure has been found that is very different from anything else known to exist at this remarkable site,” explained Peter Yeoman, Historic Scotland senior archaeologist.
“It was built using dressed stone and was clearly intended to look impressive from the outside. This marks it out from houses of the time, the exteriors of which tended to be created with function rather than looks in mind.”
“However there were some very special buildings, including certain tombs, where a great deal of architectural skill went into their architecture.”
There are a couple of photos but they're not enlargeable.