The Game of Thrones Basemap is a custom-designed map that uses thematic location data and basemaps to explore the relationship between the natural environment and modes of human interaction in the fictional world of Westeros. The map's design involves adding specific components such as rivers, roads, forests, cities, and the Great Wall, styled with techniques like shading terrain using color palettes to suggest elevation and curvature. The responsive styling allows viewers to explore the map further by zooming in on different regions and filtering data. The custom basemap can be inserted into CARTO Builder and is designed to help cartographers and data analysts tell better stories with location data.