Regular readers will know that this site love tree houses of all types, but in researching articles a few have slipped through the cracks, their stories and histories unknown, yet the images of them are too amazing to go un-shown.

These more mysterious examples come from a combination of Pinterest and Repinly, and range from pragmatic well-constructed residences to wild and overgrown structures that seem to have grown alongside the trees they surround, with a few derelict and deserted ones somewhere in between. Above are two examples that seem organically evolved, pieced together around the growth of their trees.

Of the sturdily-constructed sort, this one looks like a regular small family home simply lodged in the branches of a big deciduous monster and bolstered by basic framing.

Finally, the tree homes of fairy tales – these two magical examples show that plans are one thing, but fantasy is another – sometimes the tree is just a foil for boisterous expressions of amazing and spontaneous architecture.