It looks at iconic structures such as the Golden Gate Bridge, the Panama Canal and the Transcontinental Railroad.
Ian Karr
Narrator
Daniel Dickrell
Self - Engineering Professor, University of Florida
Yohuru Williams
Self - Professor of History, University of St. Thomas
Jeffrey Engel
Self - Professor of History, Southern Methodist University
James Meigs
Self - Technology Journalist, 'Popular Mechanics'
Davarian L. Baldwin
Self - Professor of American Studies, Trinity College