I caught this one from GameSetWatch, through Unseen64.net. A website by ATMachine that showcases a pretty impressive amount of info on some of the old LucasArts and Sierra adventure games, much of which was probably unseen. Not sure why or how it came to attention at this point in time, considering the site appears to have been around for a few years, but I'm glad it did since I hadn't noticed it before.
There's a wealth of cool stuff there. Development and design images from games, early (WIP) screenshots, alternate art and GUI interfaces that were never used, comparisons of the same games on different platforms, comparisons of demos and full releases, and other oddities. Some of the games featured include LucasArts' Monkey Island 1 and 2, some of the many Indiana Jones adventures, Loom (which I never played), Dark Forces (ah, the memories of that one), and Sierra's Space Quest and King's Quest VI.
I had the most fun looking at the page on Indiana Jones and the Fate of Atlantis, which includes a different fighting GUI, hidden background rooms, unseen inventory items, and so on. Same for the page on Monkey Island 1, which shows some GUI and other visual features that were changed during development. Not a lot of major discoveries here, just some good, comprehensive collections, comparisons, and documentations -- it's almost like a museum. I think most of my enjoyment came from seeing the game images again and reliving the experiences.
If you enjoyed some of those games way back when, I recommend checking it out. You'll likely emerge an hour or two later. At least.