Louis XIV distrusted the Parisians and moved his court to Versailles in 1682, but his reign also saw an unprecedented flourishing of the arts and sciences in Paris. The Comédie-Française, the Academy of Painting, and the French Academy of Sciences were founded and made their headquarters in the city. <answer>To show that the city was safe against attack</answer>, he had the city walls demolished, replacing them with Grands Boulevards. To leave monuments to his reign, he built the Collège des Quatre-Nations, Place Vendôme, Place des Victoires, and began Les Invalides.
What was the reason behind demolishing the city walls?
To show that the city was safe against attack