If you plan for a trip of Myanmar make sure you have at least two nights in Bagan. This is a very special place originating out of a competition to show off how is more religious and has more money and so whover could afford it build a temple.
From big ones for the kings down to some just a little more than the size of a grown man, in all kind of styles and decors (but still within on culture) it is an artificial landscape. It is hard to judge it all from the ground so I recommend the balloon ride for a better impression.
If you have the possibility to travel to Bagan by boat it will give you a fantastic sight. To leave Myanmar without having seen would be a real shame.More