Been to Japan three times. Stayed two weeks the first time, a year the second time and two weeks the third time. Haven't traveled around that much in Japan unfortunately , mostly been in Yokohama or Tokyo. I did however go to Okinawa which had been a dream for a long time.
Other than Japan, I've been to Seoul, wasn't what I expected, but I did not explore enough i think.
Since I'm from Sweden I have been to Denmark a few times with the family when I was a kid. Don't remember much other than that Legoland was fun.