I have been fascinated with chip diagrams like these for a long time:
http://www.chip-architect.com/news/2012_04_19_Ivy_Bridges_GP...
http://chip-architect.com/news/2003_09_21_Detailed_Architect...
Of course the ones he's planning to photograph are older generation ones but worthy nonetheless.
Would be interesting to map structures on the metal mask to chip level structures but that's for later.