A highly detailed topographical relief of Austria, created using a 5 m Digital Elevation Model (DEM) from the Bundesamt für Eich- und Vermessungswesen (BEV).
I downloaded the DEM and converted it into a grayscale heightmap in QGIS.

In Blender, I applied the heightmap as a displacement modifier to generate the terrain. Afterward, I refined the model using subdivision surface smoothing and remeshing to reduce the polygon count while preserving detail.