Consisting of two famous pagodas, these attractions are remnants of the glory of the Tang Dynasty, who chose present day Xi'an as their capital. The Small Wild Goose Pagoda is a 15-tier brick structure that faces the ancient Jianfu Temple, both of which are over 1300 years old. Located south of city center, these two landmarks are joined by the much more contemporary Xian Museum, which has a large collection of local artifacts from the majority of the dynastic periods.
The Big Wild Goose Pagoda is much larger in size (64 meters/210 feet), and sits at the edge of a square about 4 km south of city center. The view from the top gives an excellent perspective on Xi'an for a minimal fee, although there are plenty of free things to do nearby. These include Asia's largest outdoor sculpture garden, as well as its most distinguished collection of water fountains (22 in total), all of which are choreographed to go off with music and lights a number of times a day. The included website has a schedule, as well as other pertinent information. Get there a few minutes early for a good view; this is one of those attractions that the tourist hordes live for.
Note:The Small Wild Goose Pagoda is featured on the map.