It may seem like a relic of the cold war, but some people in South Korea are building bomb shelters at their homes. Lee Tae-goo is a professor of architecture and he put his concern about North Korea’s nuclear capabilities into a project, a bomb shelter in his backyard. Fear of what military orders could come from Pyongyang have seen more than 3,000 bomb shelters built in the capital city of Seoul, South Korea, alone.