Day 01 - Points
Day 02 - Lines
Day 03 - Polygons
Day 04 - Hexagons
Day 05 - Data challenge 1: OpenStreetMap
Day 06 - Red
Day 07 - Green
Day 08 - Blue
Day 09 - Monochrome
Day 10 - Raster
Day 11 - 3D
Day 12 - Population
Day 13 - Data challenge 2: Natural Earth
Day 15 - Map made without using a computer
Day 16 - Urban/rural
Day 17 - Land
Day 18 - Water
Day 19 - Island(s)
Day 20 - Movement
Day 21 - Elevation
Day 22 - Boundaries
Day 23 - Data challenge 3: GHSL Global Human Settlement Layer
Day 24 - Historical map
Day 26 - Choropleth map
Day 27 - Heatmap
Day 28 - The Earth is not flat
Day 29 - NULL