You May Be More Prone to Memory Loss. How sharp you are at age 65 may be tied to something totally out of your control: your blood type. And people with Type AB blood â the least common type â may face a particularly high risk of memory loss later in life, according to a study published Wednesday in the journal Neurology.
List of tallest buildings in Barcelona. 22@ business center in Diagonal Mar district, main cluster of skyscrapers in Barcelona. Contents. Barcelona as the capital of Catalonia, the second biggest city in Spain and sixth-most populous urban area in the European Union, is a city with one of the largest number of skyscrapers in Europe.
It has a roof height of 828 m (2,717 ft), and with its antenna included, it stands a total height of 829.8 m (2,722 ft), making it the tallest building and the tallest structure in the world. Construction of the Burj Khalifa began in 2004, with the exterior completed 5 years later in 2009. The primary structure is reinforced concrete. The building was opened in 2010 as part of a new development called Downtown Dubai.