The Age of Exploration reshaped the world-but not through the heroic narratives that dominate textbooks. Behind every charted coastline lay brutal working conditions aboard overcrowded ships, behind every landing stood Indigenous communities whose knowledge made survival possible, and behind every profitable voyage stretched supply chains built on enslaved labor and resource extraction. This book traces European maritime expansion through multiple perspectives: the sailors who endured scurvy, shipwreck, and mutiny for wages that often never materialized; the navigators who relied heavily on African and Asian pilots while claiming sole credit; the coastal communities who watched foreign ships arrive with mounting alarm; and the merchants who calculated profit margins against human suffering. It examines how technological innovations in shipbuilding and navigation enabled longer voyages, how competing European powers justified territorial claims through dubious legal frameworks, and how early contact moments revealed profound misunderstandings on all sides. Drawing on ship logs, survivor accounts, Indigenous oral histories preserved in colonial records, and archaeological evidence from shipwrecks and early settlements, it reveals the environmental devastation of resource extraction, the deliberate destruction of local maritime traditions, and the demographic catastrophe that followed European arrival in the Americas. It explores how disease, violence, and forced labor systems accompanied every expedition, and how exploration narratives systematically erased these realities. This is an unflinching examination of how curiosity, ambition, and greed combined to create global connections through profoundly unequal exchanges.