1. Mutianyu Great Wall is a section of the Great Wall of China located in Beijing. It was built in the Ming Dynasty (1368-1644) and is known for its beautiful scenery, unique architecture, and well-preserved ancient features. In comparison to other sections of the Great Wall, Mutianyu has a higher density of watchtowers and is surrounded by lush forests and mountains. One of the interesting facts is that there is a toboggan ride available for tourists to descend from the top of the wall.

2. The working hours of Mutianyu Great Wall are from 8:00 am to 4:30 pm in winter and from 7:30 am to 5:30 pm in summer. The phone number of Mutianyu Great Wall is +86 10 6162 6500.

3. The ticket price for Mutianyu Great Wall is CNY 45 for adults and CNY 25 for children between 1.2 meters and 1.4 meters in height. Children under 1.2 meters can enter for free. There are various transportation options available including private car, taxi, bus, and cable car. It is recommended to take a hired car or public bus from Beijing to Mutianyu, which takes around 2 hours.