20 Closest Pairs of Top 250 Cities in different Countries
Considering the 250 most populated urban agglomerations, can you find pairs that are in different countries and no more than 301 km away from each other?
and Brazzaville - Kinshasa, Accra - Lome, Lagos - Lome, Conakry - Freetown, Beirut - Damascus, Doha - Manama, Ho Chi Minh City - Phnom Penh, San Diego - Tijuana etc.
whoops looks like I made a lot of mistakes - later I'll try and find out how (maybe this is actually on the top 250 cities?!) and work out the data again - thanks for spotting them!