34 unusual maps you absolutely need to see to understand the world Share this post on FB: Share 11. Population density world map via: imgur 12. Driving orientation credits: ChartsBin.com 13. The longest straight sea route (20,000 miles – 32,000 km) credits: kepleronlyknows via Reddit 14. The sense of European citizenship via: imgur 15. World population by latitude and longitude credits: mrgeng via Reddit 16. Most popular sports by country via: imgur 17. Red hair frequency in Europe via: imgur 18. If the entire world population lived in one city, how big would it be? credits: Tim De Chant Page 2 of 4Previous 1234Next