Gizmobench Daily geography: map data

Country outlines and cities: Natural Earth (naturalearthdata.com), public domain.
  ne_50m_admin_0_countries and ne_10m_populated_places_simple, v5.
Converted with topojson-server and topojson-simplify; drawn in the browser with
topojson-client and d3-geo. All four: ISC License, Copyright Mike Bostock.
Permission to use, copy, modify, and/or distribute this software for any purpose
with or without fee is hereby granted, provided that the above copyright notice
and this permission notice appear in all copies.
Borders are Natural Earth's de facto lines. Puzzles avoid disputed ground.