Once called "the stomach of Paris" because the city's fresh foods market was centered there, Les Halles today is a vast underground shopping mall. Among its many shops is FNAC, a great place to shop for books and music. Above ground is a garden with sculpture, fountains and a playground. The Gothic Cathedral of St. Eustache, known for its pipe organ (supposedly the largest in France) and Rubens paintings is on the north side as is Au Pied du Cochon, famous for serving up various parts of the pig as well as being the first Paris restaurant to be open 365 days a year (also 24 hours a day!).

forumdeshalles.com