Kos Minar, located in Karnal district of Haryana, is an important historical monument from the Mughal era, serving as a milestone on the ancient Grand Trunk Road. These towering stone structures were used to mark distances during medieval times, providing guidance for travelers and postal runners. Situated near the Karnal–Delhi highway, the Kos Minar is easily accessible and offers a glimpse into Haryana’s rich history and architectural heritage. Visitors can explore the surrounding area, which reflects the Mughal period’s road network and strategic planning. Ideal for history enthusiasts and photographers, Kos Minar stands as a testament to India’s medieval infrastructure and cultural legacy.