To find a Zhangjiajie wallpaper, you can use the bing-wallpaper-robot npm package. Here's a brief snippet to get you started:

npm install bing-wallpaper-robot

Then, you can use the following command to download a Zhangjiajie wallpaper:

const BingWallPaperRobot = require('bing-wallpaper-robot');

const robot = new BingWallPaperRobot();
const wallpaper = await robot.getWallpaper('zhangjiajie');
console.log(wallpaper);

This will print out the metadata of the selected wallpaper. You can then use this information to download the wallpaper in HD vector format.

Note: Make sure to check the availability and licensing terms for the wallpaper before using it.