This is the 1268th most frequent Korean word.
건물을
The Korean word "건물을" means "building" (as the object of a sentence).
Here, '건물을' (buildings) is used as the direct object of the verb '설계하다' (to design), indicating what is being designed.
나는 건물을 미술적으로 설계하는 것을 좋아합니다.
I like designing buildings artistically.
In this sentence, '건물을' refers to '건물' (buildings), specifically modified as '오래된 건물' (old building), serving as the object of the verb '복원하다' (to restore).
우리는 오래된 건물을 복원하려는 계획을 세웠습니다.
We made a plan to restore the old building.
'건물을' (the building) acts as the object of the verb '보호하다' (to protect), specifying what needs to be protected.