Constructing the Colossal

The 5 moments in this challenge

The scenes are shown below — tap a card to reveal its place and year.

1. 

   Round 1 · 1911

   Construction of the RMS Titanic

   Belfast, Ireland

   The massive twin liners Olympic and Titanic were built side-by-side at the Harland & Wolff shipyard under the largest steel gantry ever constructed at the time.

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2. 

   Round 2 · 1550

   Construction of the Ming Great Wall

   Mutianyu, China

   Most of the highly recognizable brick and stone sections of the Great Wall were built during the Ming Dynasty to defend against Mongolian raids after the Tumu Crisis.

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3. 

   Round 3 · 1975

   Laying the Trans-Alaska Pipeline

   Delta Junction, Alaska, USA

   Spanning exactly 800 miles of harsh and unforgiving wilderness, this engineering marvel was constructed to transport billions of barrels of crude oil from the frozen shores of Prudhoe Bay down to the port of Valdez.

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4. 

   Round 4 · 1967

   Collapse of the Silver Bridge

   Point Pleasant, USA

   A tiny defect in a single suspension eyebar caused the Silver Bridge to suddenly collapse during rush hour traffic, plunging 31 vehicles into the freezing Ohio River.

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5. 

   Round 5 · 1959

   Trenching Ice at Camp Century

   Greenland Ice Sheet

   During the Cold War, the US military built a secret nuclear-powered base completely hidden inside the Greenland ice sheet, known as 'Project Iceworm'.

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