Hundreds of people make a map a day every November. These are the ones from other mapmakers that stopped me, collected as the month goes. Every link goes to the original.
by Benjamin Niedermann
The northern Sweden hiking trail with its elevation profile drawn right beside the line, bending and turning with it instead of sitting in a separate chart. Two handles pick a section and read off its length and climb, and the profile simplifies as you zoom out.
by Mia Spencer
The Mexico City Grand Prix replayed as a 3D race line. The engine you hear is one real roar cut from Kimi Antonelli's own radio on the grid, looped and pitched by his revs and throttle as he drives to the win.
by @gontsa
Every raion (district) of Ukraine redrawn at the same area and ranked by Polsby–Popper compactness, where 1 is a perfect circle, with a map of where each one sits. The verdict, in the author's words: mostly potatoes.
Made a map you think belongs here? Tag it #30DayMapChallenge and send it my way. My own entries are in the 2026 gallery.