Strange Maps is a blog run by Frank Jacobs which, needless to say, brings together weird and wonderful cartography from around the world, from a map showing the black holes in the Internet to one imagining the subterranean canals on Mars, as well as this one inverting the earth’s land and seas.

Jacobs started the blog because he felt that, apart from maybe some small distinctions based on population, geography and ocean currents, ‘all regular atlases tell the same old story’. ‘Imagine going to a bookstore or the library to pick up a riveting read, and all they have is thousands of copies of The Da Vinci Code,’ he writes in his introduction to an upcoming book version.