Fort Haasdonk, constructed between 1908 and 1913, is a concrete armored fort situated within the outer fortifications of Antwerp. Although it played no significant role in the two world wars, it survived their devastation. Presently, the fort is in poor condition and remains inaccessible. However, the walking path around the moat is open to visitors. The fort is home to approximately 250 bats, The domain is a designated European Special Protection Area. For more information on the flora and fauna within the fort and their conservation. Despite its current state, the Fort of Haasdonk has been recognized as a protected natural monument since 2002