This line chart displays one week of temperature readings in degrees Celsius across multiple cities, using data from Data Canvas – Sense Your City. Each city appears as a separate colored line, with a color legend on the right. The visualization is built with D3 v5, using scales like `scaleTime` and `scaleLinear`, axes via `axisBottom` and `axisLeft`, and a line generator with `curveBasis` for smoothing. The data is loaded from a CSV file and rendered as SVG.