I went with some friends yesterday to Brooklyn for some sunset shots. The sky looked GREAT till we got to the Brooklyn Bridge Park
Clouds rolled in while we were on the subway
Clouds from east to west north to south except for one tiny spot north of the Statue of Liberty
We wait to see if that one tiny spot in the sky would move to the Statue of Liberty. Our waiting paid off! 3 hours later and half frozen the sky opened up over the Statue of Liberty. Well worth the wait if you ask me! 
1Ds MKII
Canon 70-200mm 2.8 L non IS @78mm
F/11
181 sec
ISO 100
LEE Filters Big Stopper and their .9 GND soft


