There is a lot more art and architecture from about a century ago that I am moved by than since.

Something like Pollack, I am sure that he had an interesting time exploring doing what he did. When I was an art student, I used to smoke a bit of pot and explore the interesting effects of gravity on semi liquid candle wax, I still have the results around in a box somewhere. Looks like a stalagmite from carlsbad.
Another thing I enjoyed was dripping ink on paper and blowing it around with a straw. I made a few etchings this way.