This interactive scatterplot explores London Airbnb prices across various attributes, showing density distributions through a blue-to-yellow gradient with red average markers. Users can select which numeric property appears on the x- and y-axes, filter listings by minimum values for a chosen metric, and toggle between weekdays and weekends across multiple European cities. Built with React and D3 v7, it uses `scaleLog` for the y-axis, density calculations in pixel space, and dynamically loads CSV data from GitHub repositories.