The Frist Museum here in town is hosting Picasso: Figures, showcasing all of the wonderful (and weird) ways that Picasso portrayed the human form over his career.
Upstairs, visitors can find Man with Axe and Other Stories by Liliana Porter. If you've ever looked at the I Spy books with your kids, it will be right up your alley.
The Porter work was wonderful stuff; these two detail shots really don't do it justice in terms of scale.