Royal tower of saudi arabia. Saudi Arabia is building the tallest tower in the world
Opened in 2010, the 828-meter Burj Khalifa tower in Dubai has become the tallest building on the planet, a symbol of the triumph of engineering genius. But she is not destined to be a record holder for long. In different parts of the Earth, preparations are already in full swing for the construction of even more tall and complex skyscrapers, each of which has a height at least a kilometer.
Sky City. China
The Sky City Tower, although it will have a height of just under a kilometer, is likely to be the first to break the Burj Khalifa's record of 828 meters from the base to the top of the spire. The project involves the construction of a stepped 838-meter tower in the Chinese city of Changsha, on 202 floors of which there will be residential apartments, hotels, educational institutions, hospitals, offices, and shops.
But what is interesting is not so much the record height of Sky City, but the incredibly fast pace of construction of this building. The Broad Sustainable Building company, which will build it, is known throughout the world for erecting high-rise buildings in just a few days. She plans to build this skyscraper in just 90 days plus 120 days of preparing the site for construction.
Construction of this skyscraper was supposed to begin in the summer of 2013, but has so far been postponed. True, preparatory work on the site where Sky City will grow is gradually underway.
Azerbaijan Tower. Azerbaijan
Azerbaijan also wants to build the world's tallest skyscraper. Growing revenues from the sale of oil and gas make it possible to implement very large social and infrastructure projects in this country, for example, the construction of the artificial Khazar Islands archipelago, the high-rise dominant of which will be the 1050-meter Azerbaijan Tower.
The construction of the archipelago began several years ago. Now the first public, residential and office buildings have grown on it, and the construction of the Azerbaijan Tower itself is expected to begin in 2015.
The project’s investors promise to put the Azerbaijan Tower building into operation in 2019, and to finish the entire artificial archipelago by 2020.
Kingdom Tower. Saudi Arabia
But still, most of the projects of super-tall buildings are planned to be implemented in rich Arab countries. Eg, Saudi Arabia lives with the idea of building the tallest building in the world - the Burj Khalifa in the neighboring United Arab Emirates haunts them.
Construction of the Kingdom Tower skyscraper began in 2013 in the city of Jeddah. The height of this 167-story building will be just over 1000 meters. The exact data is still unknown - they will appear only after the facility is put into operation. Investors are afraid to make them public, fearing that someone will build a structure just a few meters higher and break the record.
Kingdom Tower will be the centerpiece of the Kingdom Center mixed-use development, a city of residential, office, hotel, retail and entertainment developments that will cost $20 billion.
Madinat al-Hareer. Kuwait
They want to build a kilometer-long skyscraper in Kuwait. In June 2014, a building project called Madinat al-Hareer, whose height will be 1001 meters, was finally approved there.
The name "Madinat al-Hareer" translates to "Silk City", a nod to Kuwait's glorious history as one of the world's silk trading centers. It was originally planned that this skyscraper would be built by 2016, but, apparently, this deadline will be postponed by at least two years.
Dubai City Tower. United Arab Emirates
Dubai is looking at the projects listed above with caution - in the very near future they could break the height record of the Burj Dubai skyscraper. But, on the other hand, in this city they don’t sit with their hands folded. There, work is in full swing to create a project for the world's first two-kilometer building.
The Eiffel Tower is used as the basis for the design of Dubai City Tower. But the dimensions of this Arab skyscraper will be seven and a half times larger than the French prototype. The height of the future tower will be 2400 meters.
The 400 floors of the Dubai City Tower will be connected not only by elevators, but also by a vertical train that can travel at a speed of 200 kilometers per hour and transport people from the bottom floor to the top in a matter of seconds.
At the construction site allocated for the construction of Kingdom Tower, until today there were only giant foundation piles driven into the sand to a depth of 100 meters. And until this moment, it was unclear whether full-scale construction of this colossal structure would begin or whether its creators would abandon their ambitious undertaking.
According to the British news portal BD Online, the project is back on track. Investors finally forked out the money and invested the required $1.2 billion in construction, and construction itself will begin on April 27, 2014. The British company EC Harris and Mace was appointed to manage the construction and is ready to begin fulfilling the terms of the contract. In 2012, this construction company erected The Shard skyscraper in London, 306 meters high. 
There are still a lot of open questions regarding the Kingdom Tower. For example, how living at an altitude of 1007 meters can affect the human body. Or how to implement an elevator system inside a skyscraper, if existing models provide a cable length of no more than 500-600 meters, since they simply cannot withstand a longer length due to their enormous weight.
All these, as well as many other problems, will have to be solved by the engineers of the British company in the very near future. And we can only watch the progress of construction and wait for the final results. 
Saudi Arabia presents itself to the whole world as an influential and successful country that has huge oil reserves. But this is not enough for kings and princes. The image of a futuristic country is the future of Saudi Arabia, announced by ambitious rulers.
The project of the Royal Tower in the city of Jeddah is a move that will allow the country to declare itself as “the country where the tallest building in the world was built.” Almost ten years passed from the first ambitious idea to build a mile-high building to the laying of the foundation.
Al-Waleed ibn Talal Al Saud, the prince, the richest man in the Middle East, is the author and main leader of the project. His words clearly describe the main function that the Royal Tower should perform:
This will be our message to the world of finance and economics, which should not be ignored. It is important for us from a political point of view to show the whole planet that we can invest in our country, despite the turmoil and revolution happening around us states Al-Waleed ibn Talal Al Saud
The tower is valued at $1.23 billion. It will be the central and first facility in the Kingdom City project, which will be located 32 kilometers from Jeddah.
Adrian Smith - architect and design of the Royal Tower
The designer of the Royal Tower was Adrian Smith, who, by the way, is the designer of the tall skyscraper in the world located in Dubai - Burj Khalifa with a height of 828 meters. Andrian will have to overcome his own bar and think through how the building will be built, which should be higher than its predecessor in Dubai.
The height of the Royal Tower will be 1000 meters, which is 172 meters higher than the Burj Khalifa. Initially, the prince set the task of developing a project with a height of 1600 meters, but the nature of the soil at the construction site is such that a tower of such a height would be too heavy and would simply go underground.
It is assumed that the building will have about 200 floors, which will be divided between the hotel Four Seasons, office space, luxury condominiums, and on the top floors - an observatory. The total area will be about 5 million square meters.
Each side of the Tower will be immersed in the shade due to special recesses, the terraces of which offer views of Jeddah and the Red Sea, and glazing with a high degree of thermal insulation will reduce the cost of maintaining a comfortable temperature. The entire building is planned to be surrounded by cozy patios.
59 elevators, 5 of which are double-deck, will serve guests and employees of the tower. The building will also have 12 escalators. To compensate for atmospheric overload, the elevators will have a special speed that is different from the speed of regular elevators.
Laying of the foundation was completed in December 2013. The tower itself is planned to be commissioned in 2017. As of February 2015, construction of the basement and first floor is in full swing.