jpg.to does not seem to be a complete metric space. The Cauchy sequence of Pi does seem to converge to Pi.
http://jpg.to/
http://3.jpg.to/
http://3.1.jpg.to/
http://3.14.jpg.to/
http://3.141.jpg.to/
http://3.1415.jpg.to/
http://3.14159.jpg.to/
http://3.141592.jpg.to/
http://3.14159265.jpg.to/
http://3.141592653.jpg.to/
http://3.1415926535.jpg.to/
The number of references to pi seems to decrease as the precision increases.