Hanging Wall Scrolls Empty in Chinese / Japanese...

長城 is the Chinese name for the Great Wall.

Built at the northern border of China to protect from Mongol attack.

Notes:
In Japanese, this can be a surname Nagaki. Japanese often use a longer title for the Great Wall of China.
In Korean, this refers to Changsŏng (a city in Changsŏng-kun county, Chŏllanam-to province).

万里の長城 is the Japanese name for the Great Wall of China.

空手拳法 is the Kanji title for Kempo Karate.

The first two characters mean “karate” - technically they express “empty hand.”

The last two express “fist law” which is Romanized from Japanese as “Kenpo” or “Kempo.”

That “empty hand” translation can be understood better when you grasp the idea that karate is a martial art without weapons (other than the weapons organic to your body, such as your foot, hand, fist, etc). When you practice karate, you do so with empty hands (no weapons).

Note: There is also an antiquated way to write karate. It has the same pronunciation but a different first character which means “Tang” as in the Tang Dynasty. Some dojos use that form - let us know if you need that alternate form, and we'll add it.

面壁九年 is a Buddhist term that means “facing a wall for nine years.”

This refers to the Bodhidharma who stared at a wall in meditation at the Shaolin Temple (or in a cave) for nine years until reaching full enlightenment.

虛空 means empty space, empty sky, or void.

In the Buddhist context, it can mean “emptiness of the material world.” This can also be used as an adjective to modify other words with a meaning of unreal or insubstantial.