This impressive colonnade of three-story, Ionic columns was the first structure built in Denver’s Civic Center in 1909. Architect Albert Ross created this Greek Revival design for the Denver Carnegie Library. It is one of the grandest of the 2,509 libraries that the Carnegie Steel Company founder and philanthropist helped fund across the United States from 1883 until 1929. This historic structure – sometimes called the “Old Main” – is now the McNichols Civic Center Building.