A simple command line tool which takes a directory of images, reorganizes them a little bit (I'm not wild about this but it's not too hard to put everything back the way it was), and generates a static image gallery. Uses just a little bit of Javascript webshit to make the gallery responsive and mobile-friendly. The default theme looks a bit like Flickr's default album.
Sigal is yet another simple static gallery generator. It’s written in Python and it allows to build a static gallery of images. The idea behind Sigal is to ease the use of the javascript libraries like galleria. These libraries do a great job to display the images, Sigal does what is missing: resize images, create thumbnails, generate HTML pages. Doesn't seem to let you put descriptions or comments on your pictures, though. EXIF tag aware. Processes directories of images recursively. Only processes new images unless you tell it not to. In some ways, seems to work like Pelican.
There is a native Arch Linux package, too.
A Perl utility that will take a directory of .jpg files and generate a web photo album automagically.
Someone fed ROM dumps from a couple of Atari games into distellamap and generated maps of function calls, with sprite dumps. Amazing, how simple games were back then...
A gallery of images made by sticking random toys into a radiograph.