A line chart displays a week of temperature readings in Celsius for cities worldwide, with each city’s data as a distinct colored line. The visualization prioritizes readability by ordering lines by their final temperature value and using semi-transparent strokes. It uses D3 v5’s `scaleTime`, `scaleLinear`, and `scaleOrdinal` for scales, `nest()` to group data by city, and a custom color legend module. Data comes from the Data Canvas - Sense Your City dataset, rendered as an SVG with axis labels and a title.