Supertall: how the world's tallest buildings are reshaping our cities and our lives

Introduction: The era of the supertall

Technology. The building block that binds the world: concrete ; The fight against sway: wind ; The race to the top: elevators ; The cooling effect: air conditioning

Society. The rules that shape the skylines: London ; The competition for air rights: New York ; The transit system that supports skyscrapers: Hong Kong ; The greening of vertical cities: Singapore

Conclusion: The future of tall buildings and a more sustainable world.