Although not as magnificent or significant as the Wat Phu complex, the two Khmer sites of Ho Nang Sida and Hong Tha Tao are an interesting side trip to any visit to Wat Phu. Located south of Wat Phu, they are accessed by turning left just before the two main galleries on the first level of the complex. The first, Ho Nang Sida, dates to the 10th century and is venerated by locals. A tree growing through the center of this crumbling shrine is festooned with Buddhist prayer flags put up by devotees who come here to pray. A mile farther south lies the site of Hong Tha Tao, which was once a rest house for travelers venturing to and from the ancient capital of Angkor. Although neither of these sites are of much architectural interest, they are quite atmospheric and certainly worth a visit.