If you aren't familiar with Steve McCurry's photography, you might enjoy this. His photographs are often shared with a theme (smiles, play) that is universal, with images from around the world that fit the theme. The one he just posted is on 'hands.' His POV is artistic and his ability to convey story through his images is quite intriguing, I find. If others have already posted his links, my apologies -- I didn't remember seeing any but didn't do a search I admit.
Interesting post, in traditional art classes hands are frequently the models for learning drawing, It's motivational--I think that just pictures of hands in different positions would be an interesting photo challenge--it's something I've not thought of before.
http://stevemccurry.wordpress.com/2014/09/22/language-of-hands/