The Atlantic Monthly is doing a bang-up job on its sesquicentennial coverage. Interesting discussions, regular features, a special issue, and what appears to be a series of photo galleries. Even better, they’ve posted the photos in large sizes (including an option to view them in an even larger format!), so you can spot details in familiar photos that went unnoticed before. There are a lot of winners in this bunch, but I loved this one of the Monitor’s turret, showing what little effect a solid shot had on the “cheesebox”.

http://www.theatlantic.com/infocus/2012/02/the-civil-war-part-1-the-places/100241/