Fitzsimons General Hospital Gate, 1920s

Established east of Denver on Colfax Avenue in 1918, Fitzsimons General Hospital was originally an army hospital specializing in treating soldiers infected with tuberculosis during World War I. After struggling with small budgets and the threat of closure, the facility expanded with the addition of a new main building in 1941 and an influx of patients during World War II. Later renamed Fitzsimons Army Hospital and eventually Fitzsimons Army Medical Center, the hospital continued to serve soldiers and veterans after the war, most famously caring for President Dwight D. Eisenhower after he had a heart attack in Denver in 1955.

After Fitzsimons was deactivated in 1996, the site became home to the University of Colorado Anschutz Medical Campus as well as a medical research park called the Fitzsimons Innovation Campus.