The Golden Triangle is one of the oldest neighborhoods in Denver, with many single family Victorian homes and bungalows built in the late 19th and early 20th centuries. Between 1904 and 1919, Denver Mayor Robert Speer completed his ambitious plan for the Civic Center area, adding many civic institutions and a neoclassic park to the north of the neighborhood, and placing a leafy concrete urban canyon around Cherry Creek, creating Speer Boulevard, the neighborhood's western and southern border. Starting in the 1990s, perhaps as the result of the new Central Library, the neighborhood began its transformation into a functional multi-use neighborhood. New condominium and loft developments came into the neighborhood, and many of the old supply stores and garages were transformed into restaurants, art galleries, and small offices.

The Golden Triangle is still undergoing many transformations. Denver's new new justice center and jail opened in late 2010. The Colorado State Judiciary building and Colorado State History Museum are scheduled to open in 2011. The Denver Art Museum's new wing was completed in fall 2006, further developing the neighborhood's art scene, which includes various art galleries and the Curious Theatre Company.

Source: Wikpedia http://en.wikipedia.org/wiki/Golden_Triangle,_Denver