From New York Times bestselling historian Dan Jones, a grand and sweeping history of the world, told through over three thousand years of iconic fortifications.

Castles have been built to defend humanity for millennia—from the walls of Troy in the Bronze Age and the desert bastion of Krak des Chevaliers in Syria; to Windsor Castle and the Tower of London; to Himeji in Japan and Fort Sumter in Charleston, South Carolina. They have inspired terror and passion, foiled conquering forces, and been deployed as the ultimate expression of wealth, status, and supremacy.

In Castles, Jones leads readers on a journey through the many eras of castle-building and across continents as each stronghold tells a unique story of power, politics, and survival, revealing the shifting tides of warfare, the rise and fall of empires, the resilience of people under siege, and the flourishing of new ideas.

Blending rich storytelling, deep research, and beautiful original illustrations, Castles is an epic story of why humans build fortifications and how they powerfully capture our imagination. With Jones's trademark scholarship and flair, he shows how defiance, endurance, and ambition have been carved into the landscapes we've inherited.