This line chart displays one week of temperature data in degrees Celsius for cities worldwide, sourced from Data Canvas - Sense Your City. Each city is represented by a distinct colored line, with a legend positioned to the right. The visualization uses D3 v5’s `scaleTime`, `scaleLinear`, and `scaleOrdinal` to map time, temperature, and city categories, respectively. Lines are generated with `d3.line` and `curveBasis` smoothing, while axes are rendered via `axisBottom` and `axisLeft`. Data is loaded from a CSV and nested by city using `d3.nest`.