华严寺位于大同市南郊，是一座历史悠久的佛教寺庙。游览华严寺时，可以按照以下路线和主要景点进行参观：

1. 山门：寺庙的入口，富有历史氛围，是游客们开始游览的地方。

2. 天王殿：位于山门后，供奉四大天王，展示了佛教历史和文化。

3. 华严殿：寺庙的核心建筑，内有金刚手菩萨、莲花手菩萨等佛像，是进行礼拜和祈福的重要场所。

4. 大雄宝殿：寺庙内最为宏伟的建筑之一，内供有释迦牟尼佛、药师佛等佛像，壁画和雕刻都具有较高的艺术价值。

5. 千佛楼：位于大雄宝殿后，内有千佛壁画，展示了佛教艺术的精华。

6. 五观音殿：分布在寺庙东西两侧，供奉不同形象的观音菩萨，展示了观音文化的多样性。

游览华严寺，可沿着这些主要景点的顺序进行参观，感受寺庙的历史底蕴和佛教文化。预计游览时间约为2-3小时，根据个人兴趣和体力来合理安排。

Tour Route and Main Attractions:

Huayan Temple is located in the southern suburbs of Datong City and is a Buddhist temple with a long history. When visiting Huayan Temple, you can follow the route and main attractions as listed below:

1. Mountain Gate: The entrance to the temple, rich in historical atmosphere, and the starting point for visitors.

2. Hall of Heavenly Kings: Located behind the Mountain Gate, this hall is dedicated to the Four Heavenly Kings and showcases Buddhist history and culture.

3. Huayan Hall: The core building of the temple, housing statues such as the Vajra Hand Bodhisattva and Lotus Hand Bodhisattva, making it an essential place for worship and prayers.

4. Mahavira Hall: One of the most magnificent buildings in the temple, containing statues of Sakyamuni Buddha and the Medicine Buddha, with murals and sculptures of high artistic value.

5. Thousand Buddha Pavilion: Located behind the Mahavira Hall, it features murals of a thousand Buddhas, displaying the essence of Buddhist art.

6. Five Guanyin Halls: Located on the east and west sides of the temple, these halls enshrine different manifestations of Guanyin Bodhisattva, showcasing the diversity of Guanyin culture.

When visiting Huayan Temple, follow the order of these main attractions to experience the historical heritage and Buddhist culture of the temple. The estimated tour time is about 2-3 hours, and you can plan accordingly based on personal interests and physical condition.