Click below to read more and get the link.
Until December 31st, the Korean Tourism Organization is offering a discounted ticket price for the Trick Eye Museum in Hongdae (click here)
I went with my friends before and it's definitely a good activity for either the SUPER hot days of summer or the cold days of winter.
Other than that, it's a tourist trap and pretty crowded.
My friends and I got another discount certificate to go to the museum, but to get the one we used, you need to have a Korean ID number and Korean language skills.
Let me know what you think of the museum!