Mid-century Buildings Hard to Protect BOISE IDAHO (idaho) - This week architectural enthusiasts and historical preservationists from throughout the Northwest are gathered in Boise. They're discussing the historical significance of Mid-century architecture, from 50s dinners to 60s ranch houses. For preservationists these buildings are the hardest to protect. Boise State Radio's Adam Cotterell reports. © Copyright 2009, idaho