The ancient building that held the title of tallest man-made structure for thousands of years is the Great Pyramid of Giza. Constructed around 2580–2560 BC as a tomb for Pharaoh Khufu, it originally stood at approximately 146.6 meters (481 feet). The pyramid was the tallest structure until the completion of the Lincoln Cathedral in England in 1311 AD. Built using millions of limestone blocks, the Great Pyramid showcases the architectural techniques of ancient Egypt and remains a significant cultural symbol, attracting millions of visitors and scholars interested in its historical and archaeological importance.