Usually Korean dramas take place in Seoul, which is understandable since its like the Hollywood of Korea; however, any dramas that do not take place in Seoul? I know I watched a few already but I bet there a lot more that I haven't seen. 

Reply 1997 (Busan mainly) 
One Sunny Day (Jeju) 
Baek Hee Has Returned (Island) 
I can't remember whether The Eccentric Daughter-in-Law is in Seoul but the setting was rather rural
Friend, Our legend  --- Busan
Tazza --- big part in Busan, where Go Ni grew up
What Happened in Bali ---  As title says, in Bali
Prince's First Love ---   Faint memories, but most of it is in Bali (if I remember correctly) ... the rest is on some resort, not much in Seoul, if any.
Flowers For My Life starts in Seoul but moves quickly to elsewhere.
There are so many damas that do not take place in Seoul, it's just the names of the cities are not menioned, as it doesn't play any big role in the plot.

The City Hall (Inju)
I Can Hear Your Voice (also not in Seoul,  though I don't even remember where)
Cinderella's Sister (setting is a bit rural)
The Vineyard Man - first 2 episodes take place in Seoul, but the rest is set in a rural location.
Warm and Cozy (Jeju)
Padam Padam ( I'm not sure where, but i don't think it Seoul)
Descendants of the Sun
Goblin
Doctor Stranger
Adolescence Medley - I don't remember where the story takes place, but it is some rural area and the main character actually moves there from Seoul, but the story takes place in this rural setting which is quite nice. It's a pretty short drama though (4 episodes), but it is not bad at all, I enjoyed it :)
On the Way to the Airport (some of it was in Jejudo and it was so pretty that I remembered it)
A lot of Seaguks I'd imagine also do not take place in Seoul, though idk the exact geographical location. 

idk if Boys Over Flowers ever makes it to Seoul but they have a lot of different locations.