This line chart displays a week of temperature data for multiple cities around the world, sourced from Data Canvas - Sense Your City. Each city is represented by a smooth, colored line from the d3 category10 scale, with a color legend and labeled axes for time and temperature. The visualization is built with d3.v5, using `scaleTime`, `scaleLinear`, `line` with `curveBasis`, `nest`, and SVG rendering. The data is loaded from a CSV file and parsed before plotting.