BBC Weather in association with the Met Office All times are PST (America/Los_Angeles, GMT-0800) unless otherwise stated Information given for most appropriate forecast location.
Dimensions: How long, high, and wide. Simatai Great Wall is 5.4 km (3.4 miles) long, with altogether 39 watchtowers. At the east of Simatai, the elevation goes abruptly up from 295 meters (968 ft) to 986 meters (3,235 ft), making a breathtaking scene. The wall is very steep and perilous, with the narrowest part only 40 cm wide.
Great Wall 101: An Overview. The Great Wall is a whopping 21,196 kilometres long, spanning East to West across China. The winding stone walls are connected by watchtowers that rise and dip over the countryâs hilly mountainside.