A Builder's Worst Nightmare: 10 Of The Weirdest Houses That Defy Logic

2. Turf Roof
2. Turf Roof

Scandinavians were building green roof houses way before they were popular.

Sod roof or turf roof houses are traditional in Scandinavian countries, particularly Norway, where they have been built for hundreds of years.

Some people even date them back to prehistoric times. 

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