WORLD MAP / GLOBAL SHIPPING / NEW YORK / 'ALEXANDRA LAND', AUSTRALIA: Map Showing the Routes of the Norddeutscher Lloyd Steamship Company in All Parts of the World. - Daša Pahor
World Sea Route Map HD, World Shipping Routes Map HD with Ports
This is an incredible visualization of the world's shipping routes - Vox
Polar Shipping Routes | The Geography of Transport Systems