Explore the Cathedral Basilica of Saint-Denis, the cradle of French royal history and the world's first Gothic cathedral. Visit the final resting place of 43 kings, 32 queens including Marie-Antoinette, and 10 royal servants. Admire Gothic architecture, colorful rose window, and chiseled columns. Free guides available; audio guide for extra fee. Hours: 10am-5:15pm Mon-Sat, 12pm Sunday. Variable duration. Wheelchair accessible. In French.