Hue is easy to get a grip on. The main landmark is the Perfume River (Hương Giang), with the old city and the Citadel on the north side and the newer city, including most hotels and restaurants, on the south side. Much of the riverside has wisely been done up as a pleasant promenade and park dotted with bizarre sculptures.
Be sure to visit the Imperial Citadel, former imperial seat of government and Hue's prime location, a sprawling complex of temples, pavilions, moats, walls, gates, shops, museums and galleries, featuring art and costumes from various periods of Vietnamese history.
The other great attractions in Hue are the Tombs of the Emperors, which are located along the Perfume River south of the city, Thien Mu Pagoda perched on a bluff over the river and housing some very fine gold and silver Buddha images. The Thien Mu Pagoda overlooks the Perfume River and is the official symbol of the city of Hue.