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A rescue tunnel is needed to free one of the world's largest machines stuck in the world's longest tunnel in the Swiss Alps.

Following the construction of the longest, fastest and tallest roller coaster, the Tatsu, located at the Six Flags Magic Mountain in Valencia, California.

Under a sweltering sun in the heart of Madrid, Spanish construction workers are working non-stop on the largest highway project in the world.

For 15 years, Canadian diving enthusiasts have been trying to turn the coastal waters off southern British Columbia into the wreck-diving capital.

A look at the complex construction of the new 13km double span bridge in Bangkok, Thailand.

With the spectator capacity of 60,000, the new Rio stadium is smaller than some of Brazil's mega stadiums, but its design is unique, clever and state of the art.

Discover the amazing story behind the construction of Hong Kong's Stonecutters Bridge, one of the world's largest cable-stayed bridge.

Focusing on the world's largest water park, built in Tenerife, with the tallest artificial wave and biggest artificial beach.

Off the coast of Holland, amidst turbulent winds and stormy seas, workers construct huge wind turbines. However, the high winds and an unstable ship put the workers in danger.

With gold prices sky high, Barrick Gold Corp orders the worlds biggest gold mining shovel for its pit mine in Nevada. The pressure is on as the deadline

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The Hard Rock Café is financing a $400m rock and roll theme park in South Carolina, the first in the world. What began as a whim soon turns into a very expensive reality.

The world's biggest cargo ship, being built in Denmark, has only 45 days to be completed. Will the crew make it in time?

Can engineers make 6,000-ton concrete pontoons float? That's the only way to construct this astonishing bridge in Canada, but can they pull it off?

MGM builds a 31-hectare mini city in Las Vegas, the largest privately-finances project in North America.

Seoul needs a direct link to its island airport. This involves building one of the most ambitious bridges in the world, spanning almost 13km of water.

In Norway, engineers aren't satisfied with building the world's largest oil rig; so they're constructing two. Watch this incredible engineering feat unfold.

A plan to install 78 massive gates across the three inlets into Venice's lagoon may be the city's only saviour. See the mammoth project take shape.

The construction of Johannesburg's new rail system presents a difficult set of problems, most particularly dangerous sinkholes across its route.