On this disgustingly hot summer day, I just stumbled on a site that was refreshing enough to send it around.

The Design Trust for Public Space site is a great case study for how to utilize a clean, well thought-out grid, that features photography in an engaging way and employs a superclean tabbed nav that that is a million times prettier than Amazon.

The content is cross-referenced all over the place and by clicking around you can see how the grid really plays out and accommodates all the information at hand. At the risk of sounding just plain old, I wish the system text was a point larger, but its simple stylesheet is legible and has an intuitive heirarchy. Nothing like some cool design to beat the heat.