Pensilva History Group
The Pensilva History Group's site is written using the Padrino Ruby framework and makes use Haml, Sass, Compass and Coffee Script.
Padrino is built on top of Sinatra and comes with a ready-made Django style admin section. Having the admin in a distinct 'app' to the viewing site really untangles the code.
The Susy Sass mixin library is used for a sophisticated yet pain-free grid.
I have the body field of each model take Markdown so that non-technical authors can produce and control a reasonable standard of output, such as with boldness, lists or blockquotes.
A full-width 'hero' style homepage:
Normal style pages have a sidebar:
Events link to an associated iCal file:
The photo galleries' front page uses rotating Orbit plug in to trail each gallery.
Within the gallery the Masonry plugin is used to lay out the photos. Notice the 'Polaroid' effect.
And finally Colorbox is used for the lightbox.
View the source code.