When the Miami's Patricia and Phillip Frost Museum of Science opens in 2016, it's going to have an absolutely bonkers aquarium—imagine a giant camera lens, tilted on its side, that lets visitors walk below the tank and look up into it. Building it, as you might expect, entailed a feat of perfectly-timed engineering.

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Skanska recently uploaded a time lapse of what it calls an "epic" concrete pour needed to create the tank in Miami. It's hard to argue with that descriptor when you hear the specifics: 150 people, 131 concrete trucks, 25 hours of straight pouring, three days of fire drills to prepare for potential catastrophic failures, and ultimately, 1,200 cubic yards of concrete.

There actually was one hiccup—but it wasn't a dangerous one. The concrete pump and a conveyor belt at the concrete plant went down for a full half an hour during the project, says Skanska. There was a plan B in place, so the pour wasn't interrupted. But in case it had been, the project team had already prepped a plan C—a wrecker truck to pull out the failed pump and replace it.

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Check out the full time lapse below—or head over to Skanska's blog to read a blow-by-blow account of the pour. By size, it still doesn't stand up to LA's record-breaking concrete pour from this summer—but it took an extra eight hours to pour roughly 10 percent of the same concrete volume, which tells you something about the extraordinarily precise nature of the work. [Skanska]