A slow visit to central Gyeongju is a different undertaking from travelling to its hills, lake, villages and coast. Start with the places you want around Cheomseongdae, then add an outer area for a clear reason. The ideas below are little trip suggestions, not an official tour reproduced as a confirmed itinerary.
Explore the places in miniature, then choose your own accommodation and restaurants. Models are illustrative; use itinerary directions for actual travel.
Cheomseongdae Observatory: A possible anchor for central heritage; look at its stone structure and setting.
Daereungwon Tomb Complex: Separate outdoor mound viewing from the entry conditions of individual facilities.
Donggung Palace and Wolji Pond: A palace and pond visit; check last admission before planning an evening stop.
Bulguksa Temple: Allow a journey beyond the centre and decide separately whether to visit Seokguram.