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5. This is the world’s largest man-made island and probably the
largest project on this list. The islands are located off the coast of the
UAE in the Persian Gulf near Dubai. Construction started in 2001,
and making the islands involved mainly filling the seabed with
sand. The project has added 320 miles of beaches to the shoreline
of Dubai. The islands will include luxury hotels, high-end homes,
theme parks and much more.

6. The world’s largest and highest particle-energy accelerator
has helped change modern physics. The accelerator is located
underground in a 574-foot long tunnel with a circumference of 17
miles. The project was developed by CERN and completed in 2008.
The main purpose of building the LHC was to answer many basic
questions of science and the universe as well as develop technologies
such as medical imaging and electronics among many other.

7. The world’s longest stretch of underwater tunnel, is a 32-mile long
underwater tunnel which connects England and France beneath the
English Channel. Also called the Chunnel, it was started in 1988 and
completed in 1994. The lowest part of the tunnel is 250 feet deep
while 23.5 miles of the rail is submerged underwater. The trip across
the tunnel takes only 20 minutes with trains reaching speed of over
100 miles per hour. An emergency tunnel was also built in case of
a fire in the tunnel and saved 31 lives when a fire broke out in the
tunnel, a year after completion.

8. Built off the side of an enormous cliff in Zhangjiajie National
Forest Park in China, it is the highest and heaviest outdoor elevator
in the world. It is 1,070 feet high and consists of three double-story
glass elevators.The elevator takes two minutes to ride from the
base to the top, can carry 50 people in one trip with a total of 18,000
people daily. Construction of the elevator began in October 1999
and was finished in 2002 for public use.

9. The largest development project in Egypt is also the most
ambitious. It consists of building a massive irrigation system to
reclaim a half-a-million acres of desert. The project started in 2005
and will transform 500,000 acres of desert into agricultural land. The
New Valley Project’s intent is to create a second Nile Valley and is
scheduled for completion in 2017.

National Stadium (China), The New Valley Project (Egypt), Three Gorges Dam (Hubei, China), The
Venice Tide Barrier Project (Italy), Millay Viaduct (France), The Bailong Elevator (China), Channel
Tunnel, The Large Hadron Collider (Switzerland), Palm Islands (Dubai)

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