17. Guangzhou, China
Guangzhou is a very modern city, yet it is called "the City of Flowers,” as each of its spectacular skyscrapers is surrounded by grand green spaces and flower beds. Although it only has six structures at over 200 metres tall, there are plenty of other high-rises, each displaying a design that stands out in its own respect. This includes the 391 metre, 80-floor, CITIC Plaza which appears transparent against the (usually) clear blue sky!
Metro/Urban Population: 4.1 million