
Powell's Bookstore here in Portland OR, USA is a legend. Founded not so long ago in 1971 it is HUGE and has a wonderful mix of used and new books - with lots of good prices too.
The vast section pictured is
only the sailing shelves (
you'll know why this made me happy...) and the place is quirkily chaotic with whole floors devoted to things like SF and fantasy - a whole wall in there just dedicated to armageddon and post apocalyptic stuff! Lots of support for local authors, vast swathes of poetry... and all enriched by a mass of little annotations along the shelves as staff (and others!) leave thoughts and recommendations.
It's way more than a bookstore it
is a community of folk who care about the printed word (oh, swathes of graphic novels too - whole section) and obviously does coffee too.
I won't repeat why I care about community here - short version is, it matters. Great store - in both senses.