Plane Simple or Not

I was on a quest.  Identify a couple of things at a beautiful sl sim called Noweeta Grassland, Pink Flamingo.  My friend had discovered something on the hillside but was unsure what it was.  The picture is below.

Was it a building?  An alien flying saucer perhaps?
Here is my view of the same item of interest:

I think it is a crashed plane long forgotten, and partially buried in the flowers.    Any other ideas , I would be glad to hear them.

Hugs  & peace out.