20. Kingsbridge Armory

The Kingsbridge Armory on Kingsbridge Road in the Bronx was been vacant since 1995. The 575,000 square foot building, once used to house the National Guard’s Eighth Coastal Artillery Regiment, has not been used for military purposes in more than 20 years. It has, however, been used for several other purposes, including the filming of the 2006 Will Smith film, I Am Legend.
In 2013, Mayor Michael Bloomberg and the New York City Economic Development Corp. unveiled an initiative to transform the Kingsbridge Armory in the Bronx into the world’s largest indoor ice facility. However, that plan seems to have been scrapped. Curbed reported in 2021 that the armory might get transformed into — of all things — a salsa museum instead.