This bar chart displays the population of the top 10 most populous countries using 2018 United Nations estimates. It demonstrates customized D3 axes, removing default domain lines and tick lines while applying custom tick formatting and labels. The code uses d3.csv, scaleLinear, scaleBand, axisBottom, and axisLeft from D3 v5 to render the SVG, with population values multiplied by 1000 and formatted using d3.format.