Well yes, it was in New York, but it's still on in London. Great fun.
On a more cerebral level, I went to MOMA as recommended by your good self. Mrs Stroller preferred to go shopping, so I had to get round the museum in the time it took her to get around Macy's. Not ideal of course, because it's not something to be rushed, even for someone like myself who is left cold by some modern art. The Pollocks and Rothkos do little for me, but being so close to works of such scale was impressive in itself. The massive three-panel Water Lilies was stunning but not because of its scale. I think my favourite piece though was an Edward Hopper called Gasoline. Definitely somewhere to go back to.