Shanghai, China

China is the industrial powerhouse of the world, and is one of the cities of Shanghai is the top performer in China. All well system subway lines and railway lines and regular, which opened in 1993, making Shanghai the third city in mainland China has a metro system after Beijing and Taengin.oualemdana which owns the longest metro network in the world.

It should be noted that during the next year will open Shanghai "Shanghai Tower," which has a height of 632 meters and is located in the Pudong District is the second tallest building in the world, after the Burj Khalifa in Dubai.

To Twigg these achievements enabled Shanghai to work the system access without the need for an entry permit formal (Visa) for 45 nationalities, starting last August and is characterized by the entry permit to China for a period of 72 hours (three days) without the need for prior authorization, where the order for the visitor to stay in the city for a period of three days from the moment of entry.

source: http://goo.gl/UfrqRI