The former site published a Hongdae Trickeye Museum article, and old visitor pages still appear online. Because attraction names, operators and locations can change, verify that the Seoul venue you expect is operating before making a special journey.
Verify four details
- The venue’s current official name and operator
- The exact Seoul address and nearest station exit
- Opening hours for your date
- Admission terms and any app or device requirement
Use old pages only as leads
Older Seoul tourism pages describe an interactive optical-illusion attraction in Hongdae, but their hours and admission figures may be historical. Follow the linked official venue, if available, and confirm recent operating information before paying or traveling.
Connect it with Hongdae
If the attraction is confirmed, combine it with a wider Hongdae itinerary so the trip still makes sense if plans change. Save the Korean address and check the last entry time rather than only the closing time.
Reviewed August 2026. This source itself warns that past details may have changed.