Although the giveaway caused significantly more visitors, there were only 6 comments.
Thank you all !. Who, what, where, when and why:) What I've done:
I reused one of my images, 'blue fool ", from the 1th of April 2011,(you can see it here).
For the image of Times Square I've used one of the tools of bighugelabs.com.
And yes, it was April's fool day!
There were some great comments but the winner, most close to the right answers,
did some good research. It's Jo Murray. Congratulations Jo!