Each checkpoint has a standard-sized dedicated AR marker (100 mm × 100 mm).
Print on matte paper at 100% scale (disable "Fit to Page") for reliable camera tracking.
Point your camera at this marker to display the main gate 3D model and William Kellie Smith's timeline.
Point your camera at this marker to explore the craftsmen and tools behind the castle's construction.
Point your camera at this marker to bring the vintage elevator animation and secret underground tunnel to life.
Point your camera at this compass marker to view the 360-degree panoramic landscape from the castle rooftop.
Point your camera at this ruins marker to witness the grand reconstruction of Kellie's Castle's original vision.