Moma is worth a visit, but for a more lively Art experience ánd for free, one should visit Chelsea. A colony of 400 Art Galleries, showing the best in contemporary art. Running straight through is the high line, a 1 mile long linear park, build on a former railroad-spur, worth the walk.
I am definitely a creature of habit, some good, some bad, and some worse. This is one of my better ones. Pretty much stop here every day on my way to the studio for caffeine. They brew up stumptown and always see someone I know from the neighborhood. When I get to the front of the line there is already a large coffee ready for me.