South Korea Trip Planning - Recommendations Needed!

Hey all, I'm heading to South Korea next month and wanted to get some travel tips and advice from the community. This will be my first time visiting - any recommendations for must-see destinations? I'm especially interested in learning about the culture and history.

Anyone have favorite areas they recommend checking out? I'd also love suggestions on local foods and dishes I need to try. Drop any additional advice in the comments! Hoping to make the most of my trip to this fascinating country. Let me know if any other RedWeek members will be in the area at the same time too.