"The following maps, inspired by a map by Eric Odenheimer, show the cities and countries that are at the same latitude across the ocean, for anywhere in the world. The map below shows the Western hemisphere. The colored bands on the right side show European countries in blue and African countries in red. You can see that Africa is huge, and Europe is a lot farther north than you might think. On the left, Asian countries are shown in yellow, while the countries in Oceania are below them in blue. The northern tip of Australia ends up about on par with Buenos Aires."
Click on the map above to go to the page with several more views. I think these are great. It never occurred to me that Miami was as the same latitude as the Sahara.