Geospatial visualization is the graphical representation of data that has a geographical or spatial aspect. It helps in understanding patterns, trends, and relationships in data by displaying it on maps or in 3D environments. This technique is widely used in fields like urban planning, environmental science, and transportation to analyze spatial information effectively. By using tools like GIS (Geographic Information Systems) and mapping software, users can create visualizations that highlight specific areas of interest. These visualizations can include heat maps, choropleth maps, and 3D terrain models, making complex data more accessible and easier to interpret for decision-making.