=使用「滑鼠滾輪」放大縮小、滑鼠左鍵「拖拉」移動地圖=
{
"id": "newlandmark",
"title": "New Landmark",
"description": "Creating a new landmark is that easy!",
"x": "0.0000",
"y": "0.0000",
...
}