Mega Builders

As the awesome mega-project goes under the hammer, a look at how the Burj Dubai in the United Arab Emirates is set to become the tallest building on Earth.

In a rugged canyon, down river from the Hoover Dam, a team of construction veterans is building the biggest concrete-arch bridge on the continent.

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

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

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

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

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.

In South Korea, shipbuilders have just ten weeks to assemble the hull of the first oil tanker-icebreaker, with its two innovative $10 million propeller units.

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

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.

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

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

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.

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.

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.

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.

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

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?

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

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

The excavation for Istanbul's subway system has hit a snag in the shape of the city's 4th century port, one of the world's most significant archaeological finds.

The London 2012 Aquatic Centre is an engineering marvel shaped like a giant metallic wave, designed by world famous architect Zaha Hadid

Featuring the Phu My Bridge in Vietnam. A crack engineering team are set on delivering the city of Ho Chi Minh in Vietnam from its awful gridlock, but will it finish on time?

A $600 million hydroelectric project in remote British Columbia in Canada presents a host of unique problems. Follow its difficult construction.

Follow the construction of the Green Point stadium in Cape Town, scheduled to be ready for the FIFA World Cup 2010.

See the engineering behind this amazing bridge, under construction in Abu Dhabi. Designed by Zaha Hadid, it resembles a giant sculptural snake.

Inside a famous Swedish hotel which is constructed from 10,000 tonnes of ice and 30,000 tonnes of snow, and boasts a frozen bar and cinema screen.

Six years after piles were pounded into the muddy bottom of San Francisco Bay the new Bay Bridge is about to be topped off.

Mega Builders return to Istanbul to update the Marmaray rapid-transit project, which continues to have delays.

Crews race against the clock to finish an important venue and signature landmark for the 2012 London Olympics.

Returning to Tenerife to check on the world's best water park which now seems destined to remain dry after numerous problems.

Return to the 57-kilometer long high-speed rail tunnel in Switzerland's Gotthard Mountain range to see what it will take to finish the project by 2017.