Angkor
At its peak, the magnificent city of Angkor may have had a population of 1 million, more than any European city at that time. The city included Angkor Thom, which was actually a city within the city of Angkor, and covered 4 square miles (10 square kilometers). The city of Angkor also contained many temples and palaces. The city and its temples rank as one of the artistic and architectural wonders of the world.
Excerpt adapted from the "Angkor" article, The World Book Encyclopedia, © 1999