I studied in North Korea for a month. The isolation shocked me the most.
Briefly

"I had been studying at the country's oldest university for several weeks, and with almost no opportunities to contact the outside world, I had come to see these students as my friends."
"Life at Kim Il Sung University differed greatly from my time as a 22-year-old student of Korean Studies in Sofia, Bulgaria... I was excited to meet North Koreans firsthand."
Read at Business Insider
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