Tura, Egypt

Tura, located between Cairo and Helwan, was a significant limestone quarry in ancient Egypt. Renowned for its fine and white limestone, it supplied materials for various monumental constructions, including the Bent Pyramid of Sneferu and the Great Pyramid of Khufu during the Old Kingdom. The quarry continued to be a pivotal resource in the Middle Kingdom for pyramid construction and into the New Kingdom for temple building by pharaohs such as Ahmose I. The limestone was extracted from deep underground tunnels, a testament to the advanced engineering skills of ancient Egyptian miners. The site also holds paleontological significance due to the discovery of fossil fish species, providing insights into the area's geological history.