Cassini Maps are a series of detailed maps created by the French cartographer Giacomo Cassini in the 17th and 18th centuries. These maps were significant for their accuracy and were among the first to depict regions of France and Italy with a high level of detail. They utilized a triangulation method, which improved the precision of geographic measurements. The Cassini family played a crucial role in the development of cartography during this period. Their work laid the foundation for modern mapping techniques and contributed to the understanding of geography in Europe. The maps remain valuable historical documents for researchers and historians today.