Chinese cities by multiple clues

A tower block toppled over here in 2009, landing on its side strangely intact; a few years later, 3,000 dead pigs were found floating in a river. This megacity is the world's busiest port and its name is also a verb in English.

The capital of Sichuan province, this huge city on the Jin river has a well-known panda conservation centre.

Situated on the Yellow River, this city in Henan province was the national capital no less than eight times.

Lying on the Yangtze, at the southern end of the Grand Canal, this city was the largest in the world for a time in the Middle Ages. It also served as China's capital.

At over 3,600 metres in altitude, this Tibetan city is home to the Potala Palace, the world's highest palace.

A Las Vegas style gambling resort, this former Portuguese colony has a 525-foot Eiffel Tower constructed in it.

Every winter, this far northern city hosts a festival with buildings and structures made of ice. The city is located on the Songhua River, the longest tributary of the Amur.

Mongolian and Mandarin are the two official languages of this city, located south of the Gobi Desert.

After a spate of worker suicides, Foxconn installed safety nets on their building here. A mobile phone manufacturing centre, the city's rapid growth has caused it to reach the edge of Guangzhou to form the world's largest metropolis.

The well-known Tsingtao brewery is located here. An 8-lane, 26 mile long bridge was built here but gets very little traffic.

Previously known as Mukden, it was the Manchu capital in the 1600s and is the seat of Liaoning province in the north.

One of the planet's oldest cities, it also saw the world's worst-ever traffic jam. Traffic trying to approach the city tailed back for 62 miles and did not clear for 10 days!

This city-oasis is located in Xinjiang in the far west. The nearby depression (deep valley) of the same name is one of the lowest points on Earth at −154 metres below sea level.

This lesser-known city in Hubei province is home to a gigantic 26-storey pig farm.