Trip advice - Beijing and Shanghai

Hi, First let me tell you the main secnic spots in Beijing.
If you are first time come Beijing , you should visit the scenic spots of Beijing as follows:
(1)The Tian'an men square
(2)The forbidden city
(3)The Temple of Heaven
(4)The Ming Tombs--often for Dingling
(5)The Summer palace
(6)The Great Wall
(7)Visit Beijing Hutong by tricycle.
If you are interest in Cultural art of China,you also could watch Peking Opera and The performs of Chinese Kufu and so on.
If the arrangements are reasonable, 3 days is enough for all the secnic spots.