The book, Hot to Cold: An Odyssey of Architectural Adaptation, coincides with the HOT TO COLD show at the National Building Museum in Washington DC and presents 60 case studies in harsh climate conditions in order to examine where and how we live on our planet. As we travel from one end of the spectrum to its opposite we will see that the more harsh the climate gets, the more intense its impact on the architecture. The central challenge is to mitigate the climatic extremes for hospitable human life, while finding solutions that can be both economically and environmentally profitable.