Niswa, Oman. Came and sat in a tree near where we were having lunch in a park by the Wadi. There was a channel of clear spring water running alongside, with fish in it.
About Bill McCallum
I was born in Australia and came to the United States to pursue a Ph. D. in mathematics at Harvard University, met my wife, and never went back. I am a professor at the University of Arizona, working in number theory and mathematics education.