Query: How many municipal parks and gardens does Paris have?
Context: Paris today has more than 421 municipal parks and gardens, covering more than 3,000 hectares and containing more than 250,000 trees. Two of Paris' oldest and most famous gardens are the Tuileries Garden, created in 1564 for the Tuileries Palace, and redone by André Le Nôtre between 1664 and 1672, and the Luxembourg Garden, for the Luxembourg Palace, built for Marie de' Medici in 1612, which today houses the French Senate.