Before you go, make sure you have story shoes and are in reasonable physical condition (no need to hit the gym, there were retirees and children doing it, but if you are not steady on your feet, accidents may happen).
A bit off the beaten track, this temple does not have decorations, but it is still very impressive by size alone. Climb to the top, enjoy the view and hold on tight when going back down - no rails to hold on to!