Three Gorges Museum large reliefs, and 1-km (1,094 yards) long "Ecological Corridor". The museum covers an area of 42,497 m (c. 50,828 square yards). The exhibition hall covers 23,225 m (c. 27,778 square yards). There are four main displays: Further displays include: Another major exhibit is a 180° panorama of wartime Chongqing when it was the provisional capital of Free China and was subjected to Japanese bombardment. There is also a 360° cinema showing the natural and social scenery of the Three Gorges before the dam was constructed. A 1st-floor exhibition on the Three Gorges includes a model of the Three Gorges Dam.
Three Gorges Reservoir Region 300–340 days. The annual runoff flow at the site of the dam of the Three Gorges Project is 451 billion m³ with the annual sediment discharge of 530 million tons. The Three Gorges abounds in water resources, ecological resources, tourism resources, and the resources of some ores, which have a great potential for exploration. The Yangtze River flows through the Three Gorges Reservoir Region with the good conditions for water transportation and the water-resources development. The potential installed capacity of hydropower can be about 30,000 MW in the Three Gorges Reservoir Region where the water resources are the most abundant