According to Constructionweeklyonline, as reported Dynamic Architecture Group, London has pipped Dubai as location of the world's first rotating tower, with construction expected to begin this year. The company also reported, that they would announce the start of construction on the first building in motion in London in due time, most probably within this year. As reported Reuters in 2008, Dynamic Architecture Group planned to build so-called dynamic towers -- prefabricated sun - and wind-powered skyscrapers that will keep changing shape as each floor rotates around a central axis -- in Moscow and Dubai by the end of 2010, but this two projects are still on papers only. A 70-floor building has received planning approval for Moscow, and an 80-floor building in Dubai is awaiting approval. Instead of just one revolving floor, like other buildings around the world, every floor in Fisher's towers will rotate. Russian real estate developer Mirax Group is behind the Moscow tower, while the planned Dubai building is backed by Fisher's Rotating Tower Technology Company. The towers are expected to generate enough electricity for themselves and other nearby buildings from solar panels and wind turbines fitted horizontally between each floor. People who own an entire floor will be able to simply speak to control the rotation, with speeds varying from an hour to three hours for each full rotation. The building, designed by architect David Fisher, was due to produce 80 pre-fabricated floors that would spin independently of each other and take between one and three hours to make a complete rotation. The tower was due to include 20 floors of retail, 15 for a hotel and 45 floors of residential apartments.

In January of each year, CTBUH publishes a review of tall building construction and statistics from the previous year. The annual story represented the record for the most 200 meter or higher buildings completed in a given year. According to tall buildings official site more 200 m+ buildings were completed in 2011 than in any year previous, with a total of 88 projects opening their doors. Shenzhen's "Kingkey 100", at 442 meters, tops the 2011 list. The buildings completed in 2011 have effected a significant change in the world's tallest 100 buildings, with 17 new buildings added to the list. This change continues the trends of recent years. Perhaps most significantly, for the first time in history the number of office buildings in the tallest 100 has diminished to the 50 percent mark, as mixed-use buildings continue to increase, jumping from 23 to 31. It is interesting to examine where the predicted continued increase in tall building activity will take place. China and the UAE contain a total of 39 of the projects - over 44 percent of the world's completions in 2011. However, several cities, not previously seen as centers of tall building construction, are quite evident in this group of projects. In fact, the three cities to complete the most 200 m+ buildings in 2011 are all relative newcomers to the list: Panama City, Abu Dhabi, and Busan. Together, this cities contain 34 such buildings and accounted for 32 percent of completions in 2011, surpassing traditional tall building centers such as Dubai, Shanghai, and Singapore. China: When discussing skyscraper completion, it is impossible to neglect the market of China, which contributed 23 completions in 2011. However, quite surprisingly given the region's impressive market, we have seen China's global percentage of building completions begin to drop off slightly. In 2009, China contained 45 percent of the buildings completed and 33 percent in 2010. In 2011, China contained only 26 percent of the global total of 200 m+ completions. Shenzhen's "Kingkey 100", at 442 meters (1,449 feet), was the tallest to complete in 2011, opening in December. Dubai: Another significant existing market is the city of Dubai, which added 6 tall buildings in 2011. In 2011, Dubai's 23 Marina became the world's tallest residential building, at 393 meters. Coincidentally, the building sits near both The Torch (the previous world's tallest residential for a short time) and the under construction Princess Tower (set to become the world's tallest in 2012), making the Dubai Marina the tallest residential skyscraper cluster in the world. Panama: Before 2008, no 200 m+ buildings existed in all of Panama. Then, between 2008 and 2010, 3 buildings opened. In 2011, Panama City completed ten 200 m+ skyscrapers, more than any other city and more than double the number of completions in all of North America. With these completions, there are now 12 such buildings in Panama. One of these buildings, the "Trump Ocean Club International Hotel & Tower", became the tallest building in Central America when it completed in 2011 at 284 meters in height. Additionally, there are another 8 buildings currently under construction and set for completion by the end of 2012. Abu Dhabi: Another emerging market in 2011 was Abu Dhabi, Dubai's neighbor. This city added nine 200 m+ buildings in 2011, remarkable as it contained only two such buildings at the beginning of the year, another thirteen 200 m+ buildings are currently under construction in Abu Dhabi. Abu Dhabi's largest project to complete in 2011 was "Etihad Towers", a complex comprised of 5 towers ranging between 218 meters to 305 meters. Busan: The Korean tall building market has also seen significant development in recent years, containing twenty-four 200 m+ buildings by the end of 2010. However, only one such building existed in the country's second largest city, Busan. 2011 saw all this change with 9 of the 11 Korean completions taking place in Busan. This included the completion of the "Doosan Haeundae We've the Zenith Tower complex" and "Studio Daniel Libeskind's Haeundae I'Park complex". These two projects, which sit directly next to each other, added five 250-meter residential buildings to Busan. 2011 also saw the completion of Korea's tallest building, the "Northeast Asia Trade Tower". United States and Europe: In 2011, two 200 m+ buildings were completed in the US: New York's Eight Spruce Street and Cincinnati's Great American Tower. Europe, another significantly developed tall building market, completed four 200 m+ buildings in 2011, matching its record set in 2008. These buildings, spread through the UK, France, Germany, and Russia, seem to point to a possible resurgence of the tall building in continental Europe. There are currently 20 such buildings under construction in Europe, with some ten set to complete in the next two years. According to annual report, looking to the future, it is now foreseeable - indeed likely - that the recent trend of an annual increase in building completions will continue for the next several years, perhaps even through the end of the decade. This represents a change in recent predictions. It had been expected that skyscraper completions would drop off very sharply after 2011, as a result of the 2008 global financial crisis and the large number of projects put on hold. With over 300 projects above the 200-meter mark currently under construction internationally, the tall building community is set to continue to develop at an incredible pace. As new markets continue to discover and develop the tall building, it is quite possible that this pace will continue through the end of this decade. Without a doubt, the skylines of the world will see tremendous change by the year 2020.

As reported by the National Statistical Service of Armenia, the total volume of construction output in 2011 compared with the previous year has dropped by 11.5 percent and amounted 480 billion AMD ($1.25 billion). The primary reason for the drop is the reduction of construction works financed by international organizations, companies and private sector. At the same time volume of construction output financed by the State, the Local Governments (Communities), and the Armenian Apostolic Church has increased. The companies' construction spending account for nearly 45 percent of all construction output, but there was 13.5 percent drop compared to 2010. The second largest investor in the construction industry is the State Government with 15.2 percent increase. But the largest growth is recorded in Local Governments construction spending multiplied 5.9 times compared to 2010. All international donors have considerably reduced their construction financing in 2011, except German Development Bank (KfW) with sector investment increase 2.2 times. The Armenian Apostolic Church construction investment has increased by 13.8 percent, but the private sector construction activities have considerably dropped by nearly 30.5 percent.

In our days skyscrapers construction isn't surprising, especially in Asian countries. Whereas most skyscrapers aim to stand out from crowded skylines, South Korea architects managed to bring something new in skyscraper construction planning Infinity Tower which will stand apart by blending in as the world's first "invisible" tower. GDS Architects are in the early planning stage of building what will be known as the world's first invisible tower, reported GDS architectural studio's official site. To be located near Incheon International Airport, the tower is meant to be a gateway to South Korea's bustling cityscape, symbolizing the region's rising power through a self-diminishing "celebration of the global community" - though this passive approach is somewhat offset by the unabashedly phallic design of the super tower. The tower itself appears to disappear through a unique optical technology. The key to making the tower invisible is the architects use of optical technology, with this ingenious development, the crystalline tower is expected to be completely see-through, which makes this project very impressive. The main developer of this project is the "Korea Land Corporation and Cheongna Organization". The completion of project schedule for 2014. Nevertheless the project is only in its planning stage. The main budget and date for the beginning of construction aren't announced. The 450 meters tall tower will land 145 thousand square meters area. It will also house retail areas, a water park and other ecological activities. The tower also planned to have the second tallest observation deck in the world at 385 meters high.

Buried deep underneath the mountains near Stavanger, Norway, the Green Mountain Data Center is quite possibly the greenest data center in the world. Powered by renewable energy from nearby sources and cooled with water from the adjacent fjord, the cavernous data center is all about energy efficiency. The center dramatically reduces its cooling costs and energy use by tapping into the 8 degree Celsius water from the fjord. As reported by Inhabitat.com, Green Mountain Data Center has about 21,000 sq meters of floor space inside the mountain and it is the collaboration of three Norway companies - Smedvig, Lyse Energy and Ergo Group. This includes facilities for administration, warehousing, a quay, and 9 halls to house data servers. As servers pump out of a lot of heat while storing and processing digital data, a powerful cooling system is needed to keep them from overheating. A number of data centers around the world are working towards more energy efficient systems, but the Green Mountain Data Center may have hit upon a jackpot. First, the center is buried underground, which means it uses the earth and the surrounding rock as moderators. Then it uses water from the neighboring fjord in a closed loop ground water heat exchanger and the cold efficiently cools the underground space. The center also sources all of its power from a number of very close renewable energy providers, which makes it totally carbon neutral. Combined with energy efficient design inside, the center is promoting itself as an environmentally friendly server farm. With a variety of close power sources nearby with a high level of redundancy, the farm is also promising a 99.9997% availability. Most of the data center's business will come locally from Norway, but they may also attract clients from Europe and the US because of their eco-friendly offerings. Development of the mountain halls and server rooms is going on now and they expect to be up and running sometime in late 2012. A fjord is a long, narrow inlet with steep sides or cliffs with thousand meters high, created in a valley carved by glacial activity. The length of fjord is in ten times bigger than the width. There are 4 most famous fjord areas in the world located on the west coast of Norway, Chile, New Zealand and North America.