In honor of its 50th anniversary, the Guggenheim New York is free today. Now if this where another major New York institution this would not be as cool, because most museums have free nights once a week. The Guggenheim is free one Saturday a month from 5:45 pm to 7:45 pm (ahem, lame). 
A large-scale Kandinsky exhibition is up now, which combined with Frank Lloyd Wright’s architecture, makes for an excellent museum day.I’m plotting how I can get there and back on my lunch hour.
ADDENDUM: 1:43 pm-I have just returned to my desk from the Guggenheim. The line winds out the door and down the block from 5th Avenue to Madison! No Kandinsky for me today.