Crown Fountain is an interactive public fountain in Millennium Park, in the Loop community area of Chicago in Cook County, Illinois, United States. Designed by Jaume Plensa, it opened in July 2004. The fountain consists of a black granite reflecting pool located between a pair of artistic and technically sophisticated opposing glass brick sculptures measuring 50 feet (15 m) in height. The structure involved numerous complicated electronics and architectural considerations, and the construction and design cost $17 million. Throughout most of the warmer months, it incorporates water in the form of a cascade and spouting water nozzle as well as a reflecting pool. The sculptures are known for the digital videos of Chicago residents that they display continuously throughout the year. The fountain has been praised by both trained architects and ordinary city residents for its artistic contribution to Millennium Park. In addition, the fountain has a reputation as a public play area that accommodates a need to escape from summer heat. At times when the National Weather Service issues summer heat advisories and the Illinois Governor is compelled to declare state office buildings as official daytime cooling centers, the national press points to Crown Fountain as a respite not only for Chicagoans, but also for residents of the most remote reaches of the Chicago metropolitan area.