With a growing global population, we will need more and more space to live, learn and work in. But what does that mean for the health of the planet? Can we do it sustainably? Tall buildings may be part of the answer. From the Great Pyramids of Giza and the Leaning Tower of Pisa to the Burj Khalifa and the Shanghai Tower, this book asks why and how we build higher and higher, and what that means for the planet.