i think is chief Ekpo who designed the tallest building in the world.
Burj Khalifa is the tallest building right now and it was designed by Adrian Smith.
The world's tallest building is the Burj Khalifa (formerly know as Burj Dubai) in The United Arab Emirates at 2,722.57'. It was designed by Skidmore, Owings and Merrill, who also designed past tallest buildings such as the Sears Tower in Chicago. The previous tallest building, Taipei 101 was designed by C.Y. Lee & Partners.
Taipei 101 was completed in 2004 and officially opened on July 1 of that year. It was designed by the Taiwanese architect C.Y. Lee and has since become a symbol of Taipei and a significant landmark in Taiwan. The building held the title of the tallest building in the world until 2010.
The world's tallest twisted building is the "Turning Torso," located in Malmö, Sweden. Standing at 190 meters (623 feet) tall, it was designed by architect Santiago Calatrava and completed in 2005. The building features a unique design with a series of stacked cubes that twist 90 degrees from bottom to top. It serves as a residential tower and is a prominent landmark in the region.
When it was completed in 1931, the Empire State Building was the tallest building in the world. It remained the world's tallest building until 1972, when it was surpassed by the World Trade Center.
This question is a bit confusing grammatically. Did you mean where is the tallest building? If so, the tallest building, as of August 2011, is the Burj Khalifa in Dubai (Dubai is a city in the country called the United Arab Emirates). If you meant who designed this building, the answer is that it was designed by the architecture firm called "Skidmore, Owings, and Merrill" - which is an American architecture firm with offices around the world.
The Lotte world tower is the tallest building in Busan.
The world's tallest building is located in Dubai, United Arab Emirates.
The world's tallest building is currently (2010) the Burj Khalifa in Dubai.
The tallest building in the world, was built in 2004. It is the empire state building.
It is easy, The tallest building in the world in 1889 is the Washington Monument was the world's tallest building for five years
Taipei 101, the second (as of 2012) tallest building in the world.