건물 and 빌딩 differences?
What's the difference between 건물 and 빌딩? Are they interchangeable?
Some examples of when to use them would be awesome!

Question

건물 and 빌딩 differences?
What's the difference between 건물 and 빌딩? Are they interchangeable? 
Some examples of when to use them would be awesome!

Answer

건물 means "any kind of building"
빌딩 means "high-rise office building"

ex)
그 건물은 주택으로는 부적당하다 
The building is not fit to live in.
건물 공사가 완료 되었다.
The construction of a building is completed.

영업부는 저희 빌딩 10층에 있습니다. 
The Sales Department is on the tenth floor of our building.
이 빌딩에 고속 엘리베이터가 있었으면 좋겠어요. 
I wish this building had an express elevator.