Submarine Cable Map!

You can see it here.

Greg's Cable Map is consolidates all the available information about the submarine cables, the backbone of our internet. You might think your ISP is the backbone. It's not. As much data as we move around the country, through various ISPs: AT&T, Verizon, Time Warner, Cogent, Level 3, XO, Comcast and whomever... bottlenecks remain between nations. That new Facebook data center is being built in Sweden. the bit.ly root servers are in Libya. half of the Wikipedia severs are at a data center in the Netherlands. You are just a local instance, the internet is inherently international.

So this free map is a nice resource if you're trying to understand how and where your data has to move. He's still tweaking it so don't forget to click the feedback button if you see something awry.