Beijing, the capital of China and the host of the 2008 Olympics Summer Games, was the seat of the Ming and Qing dynasty emperors until the formation of a republic in 1911. It is well known for its flatness its concentric rings road which go around the metropolis.

Gate of Heavenly Peace

Tiananmen Square

Entrance to Forbidden City

Summer Palace

Chairman Mao Mausoleum

Delicious Peking Duck
Nanjing has a long history and prehistoric sites discovered go back as far as 400 BC. Its name means "southern capital" (which Beijing being the "northern capital") and it served as the nation's capital for several dynasties. Today it is an attractive city which is home to many colleges and universities with a large international student population.
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Skyline of Nanjing
Entrance to the Heaven Dynasty Palace
Sacrifice Hall at Dr. Sun Yat-sen's Mausoleum
Revolutionary Martyrs' Memorial Park
Not very helpful :-)
Shanghai is China's largest city with about 18 million people and it is almost possible to see it grow with your own eyes. The level of construction activity is amazing with new skyscrapers being built in many areas of the city. Some pockets of the city are very modern with Western-style malls, cafes, and restaurants and a lot of young people are more trendy than compared to Chinese that I have seen in other cities on my trip.
The skyline of Shanghai with the unique Oriental Pearl Tower on the left
Old Bank Building on the Bund
People's Square (Shanghai Museum in the background)
Nanjing Donglu - one of the main shopping areas
Model of the city in the Urban Planning Museum really shows how massive it is
Hangzhou is a pleasant city 2 hours south of Shanghai and its a major tourist destination for the Chinese. The main attractions are scenic West Lake and Lingyin Temple, one of the 3 oldest and most famous temples in all of China.
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West Lake
One of the many parks around the lake
Lingyin Temple
Sampling Longjing tea with a local family
Yummy street food!
Xi'an was the ancient capital of six dynasties and its old city wall can still be seen today. Islam has a strong influence on the city and mosques and marketplaces can be found in many back alleys.
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Bell Tower
Big Goose Pagoda
Great Mosque in the Muslim Quarter
East Gate of the City Wall
Locals enjoying a Sunday afternoon
The Shaanxi province is home to one of China's most important archaeological sites: The Army of Terracotta Warriors. The 6,000 warriors and horses are surpisingly well preserved and were discovered in 1974 when a peasant was digging for a well. Close by is Hua Shan, one of China's most sacred mountains.
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Terracotta Warriors Army
Every single warrior looks different from the others
Replica of one of the warriors
Golden Lock Pass (unlocking the peaks)
View from East Peak
View from the South Peak
On the West Peak
Guangzhou's proximity to Hong Kong in the South of China makes it one of the main gateways into the country. Formerly known as Canton, it is the capital of the Guandong province which is the country's most prosperous. The city does not have many sights so I only spent a day before moving on.
Guangzhou on an overcast day
Five Rams Statues at Yuexiu Park
Pagoda at the Temple of Banyan Trees

Night at the river is colorful

I guess balloons take up to much space in the Metro...
I went to Hong Kong for the first time in 1997 before the handover to China but 10 years later I can hardly tell the difference. It is still an interesting mix of Eastern and Western culture which makes it a good warm-up for me before I'll head into China :-)
Hong Kong Island

Hong Kong Island and Kowloon as seen from Victoria Peak
Building inspired by Koalas climbing up a tree
It was Rugby Sevens weekend in Hong Kong
Dim Sum here is fantastic