I saw pictures on the early internet in the 90s of a giant wooden structure a box split in half the pictures seemingly were taken from a plane or helicopter the images were more then clear enough to see it was a large wooden box I could see levels inside of the box they were thick pieces of wood the back part of the box was covered in snow
I believe I saw the images on possibly the Nasa website or something like that I remember the images would load in 1 line as a time there were other images like of the moon etc I've searched everywhere online and cant find the original pictures only people saying they saw a similar thing and some natural rock formations on mount arrat that people are using to "debunk" the images I know exactly what I saw long before AI.
Back then I would enjoy getting into servers you could set a TTL (Time to live) that would cut off any connection leaving you practically untraceable its possible I may have found the photos somewhere I wasn't supposed to.