Sometimes time and space reveal amazing things, like four Doctors in the same room (or standing on the same book, as the case may be).
And sometimes, it all goes one step further, as Connor and Abby found out when they found themselves in the presence of the tenth Doctor. Connor was thrilled; Abby was rather bemused by how thrilled Connor was.
Time for snapshots?
Then behold, along came the eleventh Doctor, as well. Just when Connor thought it couldn't get any better.