It’s covered in graffiti, overgrown by the forest, and neglected by the city, but Fort Armistead was once a state-of-the-art coastal defense installation. Why was this place built? Whatever happened to it? What’s going on there now? Is it true that you can find tunnels into it? And what’ll you discover if you venture inside?

By the way, check out Baltimore Heritage's Five Minute Histories video about Fort Armistead Park!