An inbound tourism survey last year found that 14% of all tourists to the Netherlands head to coffee shops, with 30% of Spanish tourists, 19% of Italian tourists and 19% of American tourists paying a visit while on their holiday.

BBC: Dutch pot tourism ban hangs in the balance

And while Seoul is relatively easily navigable for non-Korean speakers, the nation still has poor tourism infrastructure, notes Kim Soo-yong, a manager handling inbound sales at Seoul-based Hanjin Travel.

WSJ: Seoul Bets on Chinese Tourists for Lunar New Year