Beijing
Beijing has seven UNESCO World Heritage Sites – the Forbidden City, Temple of Heaven, Summer Palace, Ming Tombs, Zhoukoudian, as well as parts of the Great Wall and the Grand Canal, all popular locations for tourism. siheyuans, the city's traditional housing style, and hutongs, the narrow alleys between siheyuans, are common in urban Beijing and are also major tourist attractions. The city hosted the 2008 Summer Olympics and was chosen to host the 2022 Winter Olympics, which will make it the first city to ever host both events.