Frontlines of Construction unveils its top ten building projects of modern times in an episode that travels the globe--and beyond. Engaging and enthusiastic experts shed light on engineering and design projects that have tested the limits of human capability, starting with the Panama Canal. There are also visits to four cities and the structures that define them: the Guggenheim Museum in Bilbao, Spain; the Golden Gate Bridge in San Francisco; the CN Tower in Toronto, and the Empire State Building in New York. The episode also travels to Boston and its "Big Dig"; to the Arizona-Nevada border for the Hoover Dam; to Hong Kong and its monumental International Airport; and finally, beneath the English Channel where the Eurotunnel links continental Europe with Great Britain. Finally, the episode orbits with the International Space Station.