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The World's Most Extraordinary Homes

Series 1

Episode 4: Underground

Duration: 58 minutes

on BBC Two HD

Available for years

Piers Taylor and Caroline Quentin explore extraordinary homes built underground. In the Swiss Alps, a four-bedroom house has to be accessed via a tunnel. Show more

BBC Two HD

About BBC Two

BBC Two is a lively channel of depth and substance, carrying a range of knowledge-building programming complemented by great drama, comedy and arts.