Time-honored tales of lost cities emphasize the quest for glittering treasures, priceless relics or mysterious civilizations — but more recent expeditions are going after a different sort of prize: a greater understanding of how and why cultures create large-group living spaces, and what factors eventually cause them to move on.
The findings — gleaned from archaeological digs including Cambodia’s ancient stone city of Angkor and a faded metropolis of mounds on the Mississippi River known as Cahokia — can help future architects and planners build the cities of tomorrow more sustainably.
At least that’s what Annalee Newitz hopes.
“My hope is that we’re going to be building more like the people at Cahokia and Angkor in a more sustainable way, and that our houses will be … made of things that are biodegradable, or that are even living materials,” said Newitz (who uses they/them pronouns).
Newitz recounts a personal quest to learn about Cahokia and Angkor, as well as the ancient cities of Çatalhöyük in Turkey and Pompeii in Italy, in a new book titled “Four Lost Cities” — and in the latest episode of the Fiction Science podcast, which focuses on the intersection of science and fiction.

