Frank Lloyd Wright buildings added to UNESCO World Heritage list

This week, eight Frank Lloyd Wright buildings were added to the UNESCO World Heritage list -- sites that are singled out for their value to humanity. The buildings include Wright’s Fallingwater, and his Unity Temple in Oak Park, Illinois. It also includes two of the architect’s personal homes: Taliesin, built in Wisconsin using native materials, and Taliesin West in Scottsdale, Arizona. Michelle Miller reports.