Mi Guk Kwan in Chinese / Japanese...

美國館 is a Korean Hanja title, which roughly means “U.S. School.”

The first two characters mean “USA” (literally: Beautiful Kingdom/Country).

The last character means “school,” “building,” and “schoolroom” in this context.

This “Mi Guk Kwan” title is used to mean “The American School of Tang Soo Do.”

If you want this in modern Korean Hangul, just click the Hangul characters in the pronunciation box next to the Korean flag above.