This line chart displays one week of temperature data (in degrees Celsius) for cities around the world, sourced from Data Canvas - Sense Your City. Each city is represented by a distinct colored line, with time on the x-axis and temperature on the y-axis, sorted by each city's final temperature reading. The visualization uses d3.scaleTime, d3.scaleLinear, d3.scaleOrdinal, d3.line, d3.curveBasis, d3.nest, and d3.axisBottom/axisLeft to render the chart and its axes. A custom colorLegend function draws the categorical legend, and the SVG output includes styled grid lines and labels.