Cool composition - I feel like I'm inside and old whale skeleton!

For light and air, if not fire protection, and ideal candidate for WA or even fish-eye experiments.

Thanks for the link and Christmas greeting. A fascinating approach that I've not encountered before. The first thing that struck me the the roof/ceiling cast over a mound that is subsequently removed is the potential for constructing fire proof versions in high bush fire risk areas. It wouldn't be hard to modify the access points for full protection.

https://cosanti.com/pages/our-story/

Taking full advantage of the weathered strata with the UW glass and B&W works in very well too.

Golden colours

Like the look of this lens

Great rock shapes

Nice

I like the B&W versions most.