Add Yahoo as a preferred source to see more of our stories on Google. Aghazadeh Mansion, a national historic site in Iran, was built with elaborate wind towers and other natural cooling techniques.

Editor’s note: This article, distributed by The Associated Press, was originally published on The Conversation website. The Conversation is an independent and nonprofit source of news, analysis and ...

Adriana Zuniga-Teran does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...