I love the art created by nature, it's always changing.
I know .... I'm being shy again ;p
Nighthawks by Edward Hopper
http://www.edwardhopper.net/nighthawks.jsp
Every time I look at the picture I see something new, and it is a simple picture by a largely unrecognised genius. I also look at it and recognise it as like places I saw in my youth, or perhaps in my imagination.
Just wonderful - all of Hopper's work deserves a proper re-examination.
Depends on your definition of a work of art. I love architecture, so I am going to say Falling Waters by Frank Lloyd Wright.
I found this artist, Harumi Hironaka, recently. I am really appreciating her art right now. Her art elicits strong emotion from me.
Human life.
I love Magritte's paintings because they're jarring and disturbing sometimes and make you think about what exactly "art" is.
My grandmother had this in her home for years. She and grandpa had six kids, four girls and two boys. After she died, her daughters got possession of this and passed it around the families. I'm not sure who has it now.
Three Reading Girls by Walter Firle.
Back in the late 1940's, my grandmother's dear friend drew and then embroidered a thatched roof cottage similar to this one. She left it to me, and it's my prize possession.