11. Brooklyn National Guard Arsenal

Second Avenue Arsenal-Extra Storage Facility-Sunset Park-Brooklyn Army Terminal-NYC

Year Built: 1925

Where: 201/207 64th St.

Also known as the Second Avenue Arsenal, the arsenal across from the Brooklyn Army Terminal is currently used as Extra Space Self-Storage facility. As of 2016, it’s undergoing renovation that will add a complete metal re-cladding on the facade. Soon, there won’t be much reminder of what it’s former use was.