Day 9: Monochrome - Streets of Boston 30 Day Map Challenge 2021Christian PrzybylekDecember 10, 2021#30DayMapChallenge2021, Boston, City Maps, Roads MapComment
30 Day Map Challenge Day 3: Polygons - Philadelphia Neighborhoods by Building Footprint Map 30 Day Map Challenge 2021Christian PrzybylekDecember 4, 2021City Maps, #30DayMapChallenge2021Comment
