Ancient town wows visitors with digitized public restrooms

In a matter of seconds, Qian Yafen can easily locate the nearest vacant toilet on her cellphone.

"I downloaded an app, clicked 'find a restroom' and then these just came up with pictures of nearby public restrooms, numbers of available toilets as well as maps showing how I could get there," Qian said.

She then chose to go to the nearest restroom. After entering the restroom, she scanned a QR code on a tissue box which dispensed toilet paper for free. "It's brilliant! It helps avoid waste and solves my problem so quickly in a way that I'd never thought of," she said.