forget it, I'm not making that last picture, my computer crashed and I lost my progress, and image manipulation is boring as forget.
Anyway, time for Pacha propaganda.
I bet its just a hole in the ground with the a cardboard sign that says "UNICORN LAIR" hung above the entrance
The lair is located 200 meters from the Yongmyong Temple in Moran Hill in Pyongyang City. A rectangular rock carved with words "Unicorn Lair" stands in front of the lair. The carved words are believed to date back to the period of Koryo Kingdom ( 918-1392).