Blue House, 青瓦臺

AFP
North Korean commandos were sent to infiltrate the Blue House in 1968
North Korea's history of foreign assassinations and kidnappings - BBC News
http://www.bbc.com/news/world-asia-38974455

South Korean prosecutors investigating impeached President Park Geun-Hye have been blocked from searching the presidential Blue House in Seoul (AFP Photo/Ed Jones)
Prosecutors in standoff at S. Korea president's office
https://www.yahoo.com/news/prosecutors-standoff-korea-presidents-office-060849469.html

Blue House - Wikipedia

青瓦臺