━━━━━━━━━━━━━🏛️ DAY 1 — Northern Seoul Highlights (Cultural / Historic Seoul) ━━━━━━━━━━━━━MorningDongdaemun Design Plaza (DDP) & Dongdaemun Station Area (Optional quick start nearby Exit 6/7)Transportation: Subway Line 4 or Line 2 to Dongdaemun History & Culture Park Station (or Dongdaemun Station)Travel time: ~15 min subway ride from central Seoul hotelsVisit time: 30–45 min (optional)→ Walk ..
