万里长城 wànlǐchángchéng 'ten-thousand-li-long wall'.
Literally "5,000-km-long wall", it was first used to describe the Qin Dynasty Great Wall, the first united northern frontier wall. It was not intended to state its length, though it was in the right ballpark, but more to say: "the Great Wall is now very, very long".
|Subject||∅ 50 mm (1,96“), Aquarell|
|Paper||300g Water Color Paper|
|Dimensions||20 × 20 cm|