On my current trip (like my previous) I've been in Europe and crossed the Bosphorous to Asia and proceeded further east (currently Tbilisi, Georgia).
At some point I'd like to move even further east, ideally all the way across Russia to Japan.
This (plus some talk in the travel chat room, "You Are Here") got me thinking, how east can I go in Asia? Would it be some point on one of the main islands of Japan? Some smaller Japanese island? Or somewhere else that I totally failed to think of?