Fortress of Nightmares is 3 haunted attractions inside North America’s Largest Coastal Fortification. Tunnels of Terror is a ghoulish maze of Halloween horrors built deep inside the tunnels beneath Fort Adams. Our all volunteer team of actors will work their hearts out to jump out and scare you as you wind your way through the tunnels in the darkness. Included with General Admission. Mayhem 3D is a UV enhanced dark walkthrough haunted maze staffed with volunteer scare-actors, and requires the use of 3D glasses. You never know what may pop out and scare you. Included with General Admission Paranormal360 is a brand new haunted attraction inside the granite walls of Fort Adams. You'll experience fright and horror like never before with our new 360 degree video experience, linked with special effects and unexpected frights. NOT included with General Admisison, a seperate ticket is required. Limited tickets available online, and at the gate.