When there isn't enough space to create buildings with large
footprints in cities, what do you? The answer is actually quite
obvious- build into the sky! As cities continue to grow and expand,
and space becomes ever more limited, buildings are becoming taller
and taller. Here are three examples of some of the tallest
buildings currently existing around the world.

Taipei

Inspired by the versatility and flexibility of bamboo, Taipei is
one of the world's tallest green buildings. It reaches an
impressive 1,667 ft., has over 100 floors and is built to withstand
the unpredictable weather and environment of Taiwan. The building
is designed to withstand 9 magnitude earthquakes and winds of up to
134 miles per hour. It boasts internal protection against
earthquakes, UV protection on its windows and some of the world's
fastest elevators, making it not only strong but functional too.
The green credentials of this amazing building have recently been
recognised- Taipei received the highest award for sustainable
construction, the LEED Platinum.

One World Trade Center

Created as a tribute to the World Trade Center Twin Towers that
occupied the site before they were destroyed by a terrorist attack
in 2001, One World Trade Center reaches the eye-watering height of
1,776 ft. and cost $3.9billion to build. That height isn't just an
arbitrary number- it was selected because it is date the
Declaration of Independence was signed that created the United
States. With 94 floors, pressurized stairwells and an advanced
emergency communication system, the building is not only incredibly
strong it's also very sustainable. It is constructed of 75%
recycled materials and received the LEED Gold award for energy
efficiency.

Burj Khalifa

Soaring into the sky at an astounding 2,723 ft.- over half a
mile high- the Burj Khalifa in the United Arab Emirates has 163
floors and is constructed from aluminium, textured stainless steel
and low-E glass to withstand the harsh temperatures of Dubai's
climate. That makes it possibly the world's tallest building. It
was completed in 2010 and cost $1.5 billion to create. Space in the
building is use for a range of purposes, including homes, hotels
and offices and the Burj Khalifa boasts the tallest elevator shaft
in the world.

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