Austria is 1,205,493 times larger than Centennial, Colorado.
Area: 83,871 km2 World Factbook
Population: 8,223,062 (July 2014) World Factbook
Austria, officially the Republic of Austria, is a federal republic and a landlocked country of roughly 8.5 million people in Central Europe. Wikipedia
Area: 0 km2 calculated
The City of Centennial is a Home Rule City located in Arapahoe County, Colorado, United States, and part of the Denver-Aurora metropolitan area. The city had a total population of 100,377 in 2010 census. Wikipedia