This line chart visualizes one week of temperature readings in degrees Celsius for multiple cities, with each city represented by a colored line. The data comes from the Data Canvas - Sense Your City project. Using d3.line with curveBasis, the chart smooths the temperature trends over time, while d3.scaleTime and d3.scaleLinear map timestamps and temperatures to the SVG canvas. A color legend built with a custom d3 module and d3.scaleOrdinal helps identify each city, and axis labels clarify the time and temperature scales.