The fastest growing U.S. cities

Each of the 10 biggest cities once lay within 500 miles of the Canadian border. Now, seven of the top 10 are sun-belt cities, closer to Chihuahua than Toronto.

Some of the nation's biggest cities today were mere blips on the radar at the turn of 20th-century America. Los Angeles, the nation's second largest city with 3,849,378 people, had a population of just over 100,000 in 1900. http://biz.yahoo.com/cnnm/070628/062707_fastest_growing_cities.html?.v=1&.pf=real-estate