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观看小提示:[DVD标清版] [BD超清版] [HD高清版] [TS抢先版:不清晰]
类型：纪录片 地区：美国 年份：2016
The series explores how and why they were built, consider the financial and social costs of their failure and examine the environmental and ecological impacts. The series also explores how experts came up with plans to make something beautiful or useful from the ruins.