During March, North Carolina Residents are VIPs at Mystery Hill! Enjoy the Gravitational Anomaly, Hall of Mystery, Bubblerama, 1903 Dougherty House, Greenway Adventures, Tomahawk Hill, Native American Artifact Museum and much, much more. And in March, buy an Ultimate one day ticket and get a free upgrade to a yearly Vortex pass! That’s a $59 value, free for NC residents. Tickets available online or at Mystery Hill. Proof of residency will be required upon entry.