Wake before dawn, hop on an e-bike, scramble up a temple in the dark, then watch the sky cycle through shades of pink. As the mist clears and temple spires become visible, stand in awe of this vast plain studded with ancient temples, each housing something sacred.
Bagan is the type of place where you plan your days around sunrise and sunset. There's not much else you'd want to do quite frankly. I think Indiana Jones would retire here.