Paris is the capital and most populous city of France. It is situated on the River Seine, in the north of the country, at the heart of the Île-de-France region. Within its administrative limits (the twenty arrondissements), the city had 2,234,105 inhabitants in 2009 while its metropolitan area is one of the largest population centers in Europe with more than twelve million inhabitants.
Percy Jackson and Annabeth Chase were sent to Paris by Hermes as a reward for getting his Caduceus back from the giant Cacus. The two had dinner at the Eiffel Tower and after went for a walk around the city.
Carter and Sadie teleported to Paris to get in to Dejardins' house - the location of a Fourteenth Nome.