An impressive special collection housed at the Richard Hugo House in Seattle, WA is ZAPP, the Zine Archive and Publishing Project. Richard Hugo House provides classes, performance space, and fosters community for writers and artists in the Pacific Northwest. The group was founded in 1996 by a group of writers seeking to form an urban retreat and hub of creativity for the literary community in Seattle. The organization is housed in a mansion on Capitol Hill, across from Cal Anderson Park in Seattle's urban center. The zine archive is stored on the second floor of the house and contains "more than 20,000 zines, comics, chapbooks and other small press periodicals, making it one of the largest zine collections in the world." Zapp is open to the public, and offers volunteer and internship opportunities.
I do not have my own pictures of the collection, so I've borrowed some from the internet. This one by Lucas Anderson taken for the UW Daily gives a sense of the extent of the collection.
The archive has received grants through 4 Culture and operates primarily on grants and donations. Click here to find out how you can help support this project. Richard Hugo House is an important part of the literary community in the Pacific Northwest, and the Zine archive is a treasure trove of the development in zine publishing and art form.
This is an image of the house from the Poets and Writers website directory.