You stand in the shade of a colonnade by the Mouseion in Alexandria around 240 BCE. A breeze from the Mediterranean cools the warm air, and at the harbor entrance the Pharos lighthouse rises in pale stone. From the streets come Greek and Egyptian voices among sailors, craftspeople, and people heading to work. Here scribes work with papyrus scrolls while scholars compare texts and discuss maps and stars. You can watch the work at the Mouseion, seek out Eratosthenes, walk down to the great harbor, or follow Canopic Street toward Rhakotis. You can also stay in the shade of the colonnade and listen to the city.