I am a Canadian visiting Seoul. I went to the Embassy but they don't give visas. So I went to the Consulate where they did it in 10 minutes. I had to give them my passport and 4 business days later it's ready. I had forgotten to get a passport photo but they did it there for $5000 wan (about $4 US). The visa was 50 000 wan but it's more for USA folks. Directions to the consulate:

Transport:
Take Subway No.4 Line, exit at Exit No.3 of Myeong-dong Subway Station, then walk about 400 meters (437.4 yards) toward Namsan. The Consular Office is close to the Ticket Office of Namsan Cable Car Station.

Note: When you get outside, look for Pacific Hotel and walk that way. It will be on your right.