• 囗(surround; square frame)
• 冬(winter)

A map is a frame enclosing all regions of land, and when read closely sounds like "dong" (winter).

• 瓦(tile; brick (depicting form))

The character 瓦 pictures tiles stacked on top of each other on a roof.

• 囗(surround; square frame)
• 冬(winter)

A map is a frame enclosing all regions of land, and when read closely sounds like "dong" (winter).

• 瓦(tile; brick (depicting form))

The character 瓦 pictures tiles stacked on top of each other on a roof.