Five-City Tour from Beijing to Shanghai Samples Best of China How many manmade buildings can you think of that have survived for more than 2,500 years? The Great Wall of China is impressive for many reasons, but top on that list has to be its longevityâ€”some sections date as far back as the seventh century BC, so long ago that a major reconstruction was needed by the time the Ming dynasty rolled around in 1368 AD. Today, much of the wall stands as always has. It courses east to west across the green mountains and running rivers of northern China for some 5,500 miles. Youâ€™ll see the monumental Great Wall on Nexus Holidaysâ€™ 10-day guided tour of China, and itâ€™s just one small part of the tour, which stops in five cities and includes round-trip airfare from 31 departure cities. Click here for a sample itinerary of the trip.