This multi-line chart displays a week of temperature readings for multiple cities around the world, using time on the x-axis and temperature on the y-axis. The lines are color-coded by city and sorted by each city's final temperature value. The visualization is built with D3 v5, using `scaleTime` and `scaleLinear` for axes, `nest` and `descending` for data grouping, and `line` with `curveBasis` for smooth paths. Data comes from a CSV file sourced from data-canvas-sense-your-city-one-week.