Fort 3 in Borsbeek stands as a distinctive Brialmont fort built between 1860 and 1864, notable for being the only fortification constructed according to the original design and featuring more natural stone decorations than its counterparts. Situated near Antwerp International Airport's runway, this fortress represents an important chapter in Belgian military heritage. The fort has been repurposed as part of a municipal park, with its structures hosting various local clubs and activities. The site offers free access to visitors and features seasonal attractions including a summer bar, disc golf, children's play areas, and guided walks during warmer months. Additionally, the fort serves as a European Special Protection Zone for bats, with its moat providing crucial habitat for numerous water birds during autumn and winter.