It's an oft-repeated phrase that "China has a 5,000-year-old civilization". Thanks to a myriad of heritage sites, which still remain standing above ground across the country, psychological bonds may emerge connecting modern visitors' minds and the distant past.

Through communication and integration, cultures appeared, evolved and merged. Time takes a toll on the appearances of these monuments, but it has not wiped out the clear, uninterrupted lineage of the Chinese civilization that has created them.

China now has 56 entries on the UNESCO World Heritage Site list. President Xi Jinping has visited various sites or offered key guidance on the protection of the nation's historical legacies on various occasions in recent years.

Saturday will be China's annual Cultural and Natural Heritage Day. On this special occasion, let's take a look at some of the nation's heritage highlights.