This centuries-old public square sits at the heart of the city and played host to royal announcements, public executions and important ceremonies over the years. The Tang dynasty established a second Pax Sinicaand the Silk Road reached its golden age, whereby Persian and Sogdian merchants benefited from the commerce between East and West.
In three or four weeks you can span the width of Chinalooking back on thousands of years of history through art, architecture and cultural practices.
The Silk Roads were a "complex network of trade routes" that gave people the chance to exchange goods and culture. It led to the Age of Discovery A.
From this revelation, monks were sent by the Byzantine Emperor Justinian ruled — as spies on the Silk Road from Constantinople to China and back to steal the silkworm eggsresulting in silk production in the Mediterranean, particularly in Thrace in northern Greece,  and giving the Byzantine Empire a monopoly on silk production in medieval Europe.
Pleased with the wealth of detail and accuracy of his reports, the emperor sent Zhang Qian on another mission in BC to visit several neighbouring peoples, establishing early routes from China to Central Asia.
Central Eurasia has been known from ancient times for its horse riding and horse breeding communities, and the overland Steppe Route across the northern steppes of Central Eurasia was in use long before that of the Silk Road. This style is particularly reflected in the rectangular belt plaques made of gold and bronze, with other versions in jade and steatite.
At some point during the 1st century BC, silk was introduced to the Roman Empire, where it was considered an exotic luxury and became extremely popular, with imperial edicts being issued to control prices.
The margin of Chinese victory appears to have been their crossbows, whose bolts and darts seem easily to have penetrated Roman shields and armour. Discovery of the New World and the Pacific Islands also took place.
In time, the Royal Road branched out into side routes; the western routes went to Greece, Rome and Britain and the eastern routes eventually crossed into the Indian sub-continent and over into Egypt and the African continent.
Goods, from spices and teas, salt and sugar, to ceramics, ivory, jewels and furs, were shuttled back and forth as countries discovered new items produced in far-away lands. You may also take a few train journeys, depending on where you visit and your personal preferences.