Les Halles it is big City center with resting zones and shoping zones.
Les Halles it is Metro stop name underground of City Center.
Chatelet les Halles it is RER and B Railjet train stop – for travel to Airport. Fot tourists who travel from Airport it is first City stop point – from this stop You can travel to Maire Paris 1 stop on metro number 1.
https://fr.wikipedia.org/wiki/Halles_de_Paris
https://en.wikipedia.org/wiki/Les_Halles
FRANCE RESIDENCES 