The Forbidden City in Beijing, China, took 14 years to build (1406 to 1420) and more than 1 million workers were involved in its construction. The palace complex, which contains 9,999 rooms, is surrounded by walls that are 26 feet (8 meters) high and a 171-foot (52-meter) wide moat.
Was there in the mid 80s - fascinating to see it from above and interior spaces! Thank you!