Hundreds of fascinating facts are waiting to be unearthed in this latest book from Aleksandra and Daniel Mizielinski, the creative duo behind the bestselling Maps. Dive below the surface, and find out what happens under the earth and under the water. From early submarines and deep-sea life, to burrowing animals and man-made tunnels - you will never look at the world in the same way again! Gorgeous design and quirky illustrations make this a book to be pored over again and again.