New York startup works to revive classic building techniques

Stone has been the cornerstone of some of the world's most iconic historical structures, yet its use in modern construction has diminished due to high costs. A New York startup is working to revive this ancient material in contemporary building practices. Dr. Bolhassani, a professor of Architecture at the City College of New York, was invited as an expert to discuss this topic on ''CBS Saturday Morning".

https://www.youtube.com/watch?v=3kkbF9-DYXA