This gallery entry presents three distinct D3.js geospatial visualizations created by Duc Pham for a CS 360 assignment. The first is a choropleth map, followed by a proportional symbols map, and finally a world choropleth map that includes tooltips for all three parts and highlights the top 10 countries in part two. The visualizations use the D3 library to render geographic data, with interactive elements such as tooltips and highlighting. The code is structured within an HTML page using CSS and JavaScript, and each visualization is linked to its own VizHub instance for embedding and viewing.