This day in theme parks, August 23rd: Uni Social 2010 null 2011 Another haunting HHN 21 hint awaits you. pic.twitter.com/VPqZweJ — Halloween Horror Nights (@HorrorNightsORL) August 23, 2011 2012 As you can see, we’ve been working to make this year’s horrors something you can’t forget…http://t.co/I1zGIWcD — Halloween Horror Nights (@HorrorNightsORL) […]