Helena, Montana 1869, October 1871, August 1872 and January 1874 that swept through the early mining camp. On August 2, 2016 an arson attack severely damaged the "tower" and was deemed structurally unstable. The tower is to be "demolished"; however, it is to be ""rebuilt" using the same methods that were used in its original construction. In 1889, railroad magnate Charles Arthur Broadwater opened his Hotel Broadwater and Natatorium west of Helena. The Natatorium was home to the world's first indoor swimming pool. Damaged in the earthquake of 1935, it was closed in 1941. The many buildings on the property were demolished
Indiana University Natatorium the Natatorium will again host Olympic Trials for diving in 2016. The Natatorium was used as the trials site every four years from 1984 to 2000. In addition, the Natatorium building houses the IUPUI Recreation Program in the basement of the facility, including the state of the art Polaris weight room which was built in 1996. Popularly known as IUPUI, this facility has been host to numerous other swim events including the 1982 National Sports Festival, the 1987 Pan American Games, the 2001 World Police and Fire Games, NCAA Championships, USA Swimming National Championships, and the Big Ten Championships. Additionally,