Arcadia Academy in Arcadia, Missouri, is described as a historic and reportedly haunted location, with a history as a girls' boarding school and previously serving as a Union hospital during the Civil War. Paranormal enthusiasts and investigators are drawn to the site, and the Academy itself hosts events like guided investigations and "haunted tours" to share its eerie historical stories and allow exploration of potentially active areas using ghost-hunting equipment. Founded in 1846 as a Methodist High School, then converted to a girls' boarding school by the Ursuline nuns in 1877. During the Civil War (1861-1863), the Academy served as a Union hospital, providing a source for some of its historical hauntings. The location is considered a paranormal hotspot, attracting paranormal groups for investigations and visitors interested in its history. The site is said to be home to both old and new spirits. Six different paranormal groups have investigated the site since March 2024.