Name the City - #8?

Name the City - #8?

This is a question in the series on Cities of the World. Each question contains several things about a city and the goal is to guess what city that is. Unlike the country questions, there is no starting letter hint. We'll try to have a new question each day.

Hint: The city may or may not be one of the cities in the picture.

Things about this city:

* This city is not its country's capital

* It's the most populous city in its country, with ~27 million people

* The estuary of one of the country's longest rivers flows through the city

* It contains its country's tallest building

* It's in the same time zone as the rest of its country

* The city's rail metro system is the longest in the world

* The world's fastest train connects the city to its international airport

* Its residents speak a unique dialect of the country's language

* A US President made a historic visit in the 1970s

* The city has its own Disneyland, larger than the original in California

Please don't cheat by looking it up or looking at other peoples' opinions and guesses. Make your best guess.

If you think you know what city this is, make your guess in an opinion below.

Good luck! And HAVE FUN!

The correct answer will be given in a few days (Wednesday).

Updates
1 y
The correct answer is Shanghai China.

Some details...
The Huang Pu river, from the Yangtze, flows through the city into the South China Sea
At 632 m, 128 stories, the Shanghai Tower is China's tallest
Though its 8 time zones wide, all of China follows Beijing time
Its rail system is 765 km long and carries 10 million per day
The maglev to the airport travels at 430 kph
Residents speak Shanghainese
Nixon visited in 1972, the start of US-China relations
Name the City - #8?
Post Opinion