Which coastal city was at the heart of trade in antiquity and is known for its lighthouse?

Alexandria

Founded by Alexander the Great in 331 BC, Alexandria in Egypt quickly became a major center of Hellenistic culture, science, and commerce. Its lighthouse, the Lighthouse of Alexandria, guided ships to its bustling port and remained an engineering marvel for centuries. The city also housed the famous Library of Alexandria, an unparalleled center of learning in the ancient world, underscoring its crucial role in preserving and transmitting knowledge.