From gravity-defying cities to sky-high pyramids, explore the world’s most ambitious megastructures that were never built.

Throughout the 1960s and ’70s, starry-eyed architects set their minds to megastructures – massive, multi-purpose designs that could house communities or even entire cities. Complex and expensive to ...

This programme unveils the engineering secrets of six iconic megastructures that went on to spark a technological revolution, ultimately changing warfare forever. The Nazis built some of the biggest ...

Disney+ and National Geographic will premiere on 4 December Megastructures: The Bernabéu of the 21st Century, a documentary that takes a step-by-step look at the construction and total remodelling of ...