"The royal capital for more than 140 years during the 19th and 20th centuries, Hue is a not-to-be-missed stop on any itinerary in Vietnam . It was a political, religious, and cultural center for the Nguyen dynasty, the last to rule the country before Vietnam proclaimed itself a republic in 1945. The city, a UNESCO World Heritage site, features a dizzying array of tombs, pagodas, and monuments—but perhaps the most impressive, and certainly grandest, sight is its citadel. Surrounded by a moat and hefty stone walls, the citadel contains the Imperial City, with fortified ramparts, brightly painted pagodas and gateways, beautiful carved-stone dragons, and a palpable sense of the history that unfolded here."