Well nuts! I'd been planning on this pick here for a while and now it looks like I'm just copying the Captain ... again (After the Hearst Castle/Neuschwanstein picks). Maybe we can look at it as his pick is the Introductory 101 class and mine is the whole Major.
I have three favorite art forms; one is an extension of surf culture (which would just be overkill considering I already have surfing) a second I can't fully define and hope to deal with later, and then this ... and I suppose I am going to be greedy:
The Creation of Adam - Michelangelo Buonarroti
The School of Athens - Raphael Sanzio
The Last Supper - Leonardo da Vinci
David - Michelangelo Buonarroti
Renaissance Art
I've been trying to keep my picks as specific as possible, and here I go and blow everything by picking a generalized art form encompassing painting, sculpting, bronze casting, architecture, etc unofficially spanning more than 300 years.
Honestly though, I could make this pick "Work from Rennaissance Artists who would eventually have Ninja Turtles named after them" and still have a collection of Masterpeices beyond my own imagination.
And while the art itself is amazing (in particular, I can stare at Raphael's School of Athens for hours and continually find something different and astounding) what I truly love about the art form is what it represents: Europe finally clawing itself out of centuries of superstition, paranoia, corruption and scientific, cultural and social decline - to me, in the idiom "it's always darkest before the dawn" the Renaissance represents just how great the "dawn" can actually be.