The Miami Military Institute (MMI) was a military college that was located in Germantown, Ohio. Originally a music school, in 1894 the music program was dropped in favor of military studies. The school operated until closing its doors in 1933, due to the drop in enrollment due to the Great Depression.
The school's parade grounds were on the current location of the Veteran's park in Germantown.
Miami Military Institute Wikipedia
From the 1940s to the 1980s, the building that was once the MMI acted as a Methodist camp, and was affectionately known as "Camp Miami" by locals. It was later a very popular location for Urban exploration from the 1990s to 2015.
By 2015, however, the building had been heavily vandalized. Most of the exterior windows had been broken by vandals and urban explorers trying to gain entry, and the roof was on the verge of collapsing due to lack of maintenance. Restoration costs were far too high, so during the summer of 2015, the buildings on the site were demolished, and the asphalt parking lot removed. As of 2016, the only remaining structure on the site is the MMI's flagpole. The school's infirmary still stands, on South Main Street in Germantown.
Artifacts from the MMI can be found on display at both the Germantown historical society museum, located on West Center Street, and at the Veteran's Memorial Museum, located on South Main Street.