Transforming Pingyao's historic courtyard homes
(CNN) -- A visit to Pingyao feels like walking through a time capsule.
The 2,700-year-old city was once the renowned banking capital of China, as important in the latter part of the Qing dynasty (1644 to 1912) as Wall Street is in the United States today.
While its financial power has faded, Pingyao's impressive architecture from that heady period, and before -- including its 3.7 mile-long (6 kilometers) city wall -- has remained remarkably intact.
In fact, Pingyao, which b...