In this world map, you can check at a single glance which countries have more people with the surname Bla. As you can see, it's effortless to notice which countries have a higher number of people carrying the Bla surname.
Globalization can make the surname Bla be found in almost every country around the globe, but being able to see the density of people residing in a country with the surname Bla greatly aids all those who seek a deeper knowledge about the surname Bla.