Some Assembly Required

The 5 moments in this challenge

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

1. 

   Round 1 · 1995

   Hoisting the Petronas Towers Skybridge

   Kuala Lumpur, Malaysia

   The massive two-story skybridge was fully assembled on the ground and then slowly hoisted 170 meters into the air over the course of three days.

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2. 

   Round 2 · 2000

   Constructing the Eden Project Biomes

   Cornwall, England

   The massive geodesic domes were built inside an exhausted china clay pit, utilizing a tubular steel space-frame that required no internal supports despite its incredible span.

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3. 

   Round 3 · 1982

   Raising the Wreck of the Mary Rose

   The Solent, Portsmouth, UK

   More than four centuries after she sank during a battle with the French fleet, the surviving hull of Henry VIII's flagship was spectacularly lifted from the seabed of the Solent in a custom steel cradle.

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4. 

   Round 4 · 1970

   Reconstructing London Bridge in the Desert

   Lake Havasu City, Arizona, USA

   After purchasing the sinking 19th-century London Bridge, an eccentric American entrepreneur shipped its granite blocks to Arizona, reassembling them over a dry desert patch before dredging a channel beneath it.

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5. 

   Round 5 · 1930

   Laying the Keel of the RMS Queen Mary

   Clydebank, Scotland

   Known only as 'Job 534', the massive steel hull sat unfinished on the slipway for years during the Great Depression before government funding resumed the work.

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