
Step inside the Jeddah Tower —
The world's next tallest building, the Jeddah Tower, is scheduled to be completed by 2020 in Saudi Arabia. This 3,280-feet tower will be taller than the Dubai's iconic Burf Khalifa.

Step inside the Jeddah Tower —
The tower is currently at floor 61 -- standing 245.5 meters tall. It is now the highest structure in Jeddah, and currently taller than the Statue of Liberty by 155 meters, but still 60 meters shorter than the Eiffel Tower.
Step inside the Jeddah Tower —
Located in Saudi Arabia, the tower is a commercial and residential project by Jeddah Economic City. The tower is expected to open in 2020, however, the opening has been delayed several times since 2013.

Step inside the Jeddah Tower —
The tower will feature the world's highest observation deck, the five-star Four Seasons hotel, luxury apartments, and offices.

Step inside the Jeddah Tower —
The observation deck will feature a 5,382-square-feet outdoor platform. Double-decker lifts will takes visitor to the observation deck, traveling at a speed of 30 feet per second.

Step inside the Jeddah Tower —
Surrounded by the desert, this was the view from the top of Jeddah Tower when CNN visited the construction site last month.

Step inside the Jeddah Tower —
It is expected that construction of the tower will require 5.7 million square feet of concrete and 80,000 tons of steel. This rendition shows how the tower will look when finished.

Step inside the Jeddah Tower —
For buildings of this stature, wind load could also put stress on the structure. To battle this, the design of the structure will change every few floors.

Step inside the Jeddah Tower —
There are plans for a 98-foot sky terrace on the 157th floor. When completed, it will be the highest terrace in the world.

Step inside the Jeddah Tower —
The structure will overlook the Red Sea, posing additional challenges to the building process. It's particularly important that the foundations -- 200 feet deep -- won't be affected by saltwater from the ocean.

Step inside the Jeddah Tower —
Like the Burj Khalifa, the Jeddah Tower will have a flower-shaped footprint.

Step inside the Jeddah Tower —
With a gross floor area of 2.6 million square feet, the construction of the tower is estimated to cost $1.23 billion.

Step inside the Jeddah Tower —
Engineers will also need to design a pump to help deliver concrete to high levels.