Horizons Unbound chronicles the transformative era when daring voyages, cultural encounters, and the relentless pursuit of knowledge and wealth redrew the world's boundaries. Through vivid storytelling, the book explores the motivations behind exploration, the challenges faced by explorers, the profound impact on indigenous societies, and the exchange of goods, ideas, and diseases that reshaped continents. From the bustling markets of Tenochtitlan to the perilous return journeys of sailors, this volume delves into the triumphs and tragedies that defined an age when the world grew larger, more connected, and forever changed.