![Lectures in History show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/063/057/small/lectures-in-history.jpg)
Summary: Iowa State University professor Thomas Leslie talks about the changes in late 19th century architecture design and technology that allowed buildings to be built taller.
Summary: Iowa State University professor Thomas Leslie talks about the changes in late 19th century architecture design and technology that allowed buildings to be built taller.