ARCHITECTURAL MODEL KIT/3D PUZZLE. English Instructions Provided In The Box. MEDIEVAL EUROPEAN CASTLE GUARD TOWER- THE EYRIE is a fortified medieval guard tower built in Ashlar stone masonry on the lower levels with timber upper levels. The model features precision cut parts and realistic material finishes. Openable windows, doors and side panels have been provided. Each floor is detachable to allow easy access to the interiors. Provision to install lights have been provided on each floor. Detailed truss work and roofing shingles have been provided. One free modular wall unit has been provided along with the Eyrie kit.