We passed some anti-tank explosives and now, we're about to go into these blue rooms and into the North Korea line. So, the North Koreans and the South Koreans still meet in this room? So, North Korea on this side, South Korea on that side. So, North Koreans and South Koreans stand here every single day and stare at each other. STEPHANIE ELAM, CNN CORRESPONDENT (voice-over): Solar power is not new, but storing this much energy from the sun is.

Source: CNN April 17, 2017 21:58 UTC