Paris is the capital and largest city of France, with over 2 million inhabitants and more than 13 million in the greater metropolitan area.

The first line of the Paris Métro opened on July 19, 1900, to coincide with the Paris World's Fair.

With a total length of 245.6 kilometers and 405 stops at 321 stations served by sixteen independent lines, the network is one of the largest in the world. An estimated 4.3 million people use the Paris Métro daily.

This is the Cluny – La Sorbonne station. The station ceiling is decorated with mosaics and the handwritten signatures of famous figures associated with the nearby Sorbonne University.