"We're seeing a tremendous amount of activity overseas, whether it's in Asia or the Middle East, " says Ron Klemencic , chairman of the Council on Tall Buildings and Urban Habitat and president of Seattle-based structural engineering firm Magnusson Klemencic Associates .

FORBES: World's Tallest Towers

Teams are to include an urban designer, architect, structural, civil and services engineering, landscape architect and a cost consultant.

BBC: Referendum call on Aberdeen City Garden project