Viking ring fort and settlement, the Shetland Islands, Jarlshof, Scotland. It has been described as "one of the most remarkable archaeological sites ever excavated in the British Isles". It contains remains dating from 2500 BCE up to the century CE.
Wind Tower, Borujerdi House, Kashan, Iran - The Borujerdi House is a famous landmark and sample of Persian traditional residential architecture. The Wind Tower is a cooling tower, ancient air conditioner.