Friday's inter-Korean summit was the first time since the Korean War’s 1953 ceasefire that a North Korean ruler has crossed the demarcation line into what is technically South Korea.
Relationships between North Korea and the United States may have thawed dramatically on Wednesday with the U.S. State Department and North Korea's state-run media announcing a suspension of nuclear enrichment in exchange for U.S. food aid.
Kim Jong Il, the 69-year-old leader of North Korea, who had become increasingly ill and reclusive in recent years, died on Sunday.
An app allows people to see a united Korea through augmented reality.