Data looked up at the walled city for a moment.
In the center of each county was a walled city.
The county edge was one day march from the walled city.
In the first half of the 19th century all the town's population lived within the walled city.
The Hall is an important architectural building within the walled city.
During the Japanese rule period, the walled city did not change much.
In fact, the area soon became known as "the walled city".
After the war, the school did not rebuild inside the walled city.
Paris at the time was a large walled city of around 200,000-220,000 people.
It was at this time that the "walled city" took its current form.
