The Château Voltaire, nestled at 55 rue Saint-Roch, between the Opéra Garnier and the Jardin des Tuileries, epitomizes a discreet, refined 5-star hotel. Designed by Zadig & Voltaire founder Thierry Gillier, and sublimated by architectural duo Festen, this establishment blends the historic charm of three buildings from the XVIIᵉ and XVIIIᵉ centuries with elegant modernity.