The Caspian Sea, the world’s largest inland body of water, spans Europe and Asia as a salt lake with a distinctive hydrological and ecological character. Covering 371,000 km², it is bordered by five countries and characterized by sharp differences in salinity, depth, and climate.
Writers such as Grant Allen viewed it as a remnant of the Mediterranean, while Buffon observed its brackish waters and hazardous navigation. Gorky captured its desolate beauty through personal memories, and Curtis associated its shores with the arid steppes. These viewpoints highlight its duality as both a geographical oddity and a focal point of human interaction, shaped by nature’s extremes and human effort.