How Did They Build That? (2021)

How Did They Build That? (2021) : 3x5

Heights & Balance 43 Min.
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Overview

A 1.2 million square foot office building balances precariously on a 39 foot wide base in Chicago. A building named Pterodactyl lands on top of a Los Angeles parking garage. And the world's longest suspension footbridge is constructed in Czechia.