The race to construct the first underwater telegraph intensifies after pressure to connect the US to other countries increases, in this clip from Season 1, "Cable Across the Sea".

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As the latest instillation of The HISTORY Channel’s popular “That Built” franchise, Engineering That Built the World sheds light on the iconic structures and engineering feats that have shaped and defined our nation and our world. From the Golden Gate Bridge, to the Panama Canal, Transcontinental Railroad, Statue of Liberty and beyond, this series tells the stories of the brilliant visionaries behind the most epic builds of the past two centuries. Up against insurmountable challenges, these are the unknown tales of rivalries, egos, backdoor politics and the brilliant engineering innovations that made the future possible.

HISTORY® is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, premium documentaries, and scripted event programming.