This is the 11059th most frequent Korean word.
기념관을
"Memorial hall" or "museum."
Here, '기념관을' is used as the object of the verb '방문했습니다', indicating that the museum is the location being visited for a commemorative purpose.
우리는 역사적 사건을 기념하기 위해 기념관을 방문했습니다.
We visited the museum to commemorate a historical event.
In this sentence, '기념관을' indicates the object that was established, focusing on the purpose behind its existence.
그 기념관을 설립한 이유는 잊지 않으려는 마음 때문입니다.
The reason for establishing that museum was the intention not to forget.
Here, '기념관을' is part of an instrumental phrase '기념관을 통해', expressing the means through which reflection on past sacrifices is achieved.