The iconic Sunsphere was built for the 1982 World's Fair. As we are celebrating the 40th Anniversary of the World's Fair and the 45th running of this race, we are helping raise money for the Sunsphere Fund.  

Visit Knoxville created the Sunsphere Fund with support from Knox County and the City of Knoxville in 2019 to preserve and maintain this historic structure. Monies from the fund are utilized for enhancements to the experience on the 4th floor Observation Deck. The goal is to protect and preserve the structure for the enjoyment of groups and individuals for generations to come. The fund is operated and overseen by Visit Knoxville. The Sunsphere is owned by the City of Knoxville and promoted like other attractions by Visit Knoxville.