15. Seattle, USA
Seattle is the commercial, cultural and advanced technology hub of the Northwest USA and a major port city for Pacific and European trade. Home 4 buildings over 200m and the famous 184m Space Needle observation tower, Seattle is surrounded by mountains and water and offers some picture-perfect views. Seattle is commonly referred to as the Emerald City and renowned as a great social and corporate city with great planning and planning.
Metro/Urban Population: 3.6 million