I took groups to the Metropolitan Museum of Art on six different days in May and June. On five of these days, the Roof Garden was closed because of rain. (The torrential spring of 2009 will go down in infamy.) On the sixth trip, however, the weather was gorgeous and since I was one of the first people inside the museum, the roof was all mine for about thirty minutes.
Maelstrom will be on the roof until October 25th.