The largest city in each 10-by-10 degree area of latitude-longitude in the world [OC]4yr ⋅ PeterVexillographer ⋅ r/MapPorn
Map of best/worst subdivision flags, according to online survey [OC]1yr ⋅ PeterVexillographer ⋅ r/vexillology
Map of Indigenous American nations, c.1500s (Public domain, copyright-free)2yr ⋅ PeterVexillographer ⋅ r/IndianCountry
World's 100 best subdivision flags, according to my viewers [OC]2yr ⋅ PeterVexillographer ⋅ r/vexillology
Flags of 100 of the world's largest cities, ranked by my YouTube viewers5yr ⋅ PeterVexillographer ⋅ r/vexillology
Where libraries shelve history books, by region - Dewey Decimal & Library of Congress comparison [OC]5yr ⋅ PeterVexillographer ⋅ r/MapPorn
