http://www.vocabulary.cl/Intermediate/Halloween.htm
http://www.history.com/topics/halloween
http://www.history.com/topics/halloween/videos#haunted-history-of-halloween
http://www.mansioningles.com/quiz23.htm
http://www.history.com/topics/halloween/interactives/hidden-spirits-game
http://www.engvid.com/halloween-vocabulary/