http://science.howstuffworks.com/science-vs-myth/afterlife/5-real-haunted-houses.htm
http://www.oddee.com/item_98065.aspx
http://flavorwire.com/422244/real-life-haunted-houses-around-the-world
http://www.placesyoullsee.com/30-of-the-most-terrifying-haunted-places-around-the-world/
http://www.villiscaiowa.com/history.php
http://winchestermysteryhouse.com/allegedhauntings.cfm
http://www.nytimes.com/2013/09/25/world/asia/dilapidated-mansion-has-had-many-occupants-including-a-ghost.html?_r=1
http://paranormal.about.com/od/hauntedplaces/ig/World-s-Most-Haunted-Place/Sallie-House.htm
http://www.hauntedrooms.co.uk/product/blickling-hall-norwich-norfolk
http://www.dailymail.co.uk/news/article-2290279/Haunted-Amityville-Eldest-son-Lutz-family-reveals-living-possessed-Long-Island-home-ruined-life.html
http://www.travelexplorations.com/akershus-festning-akershus-fortress-norways-most-haunted-place.4883541-18557.html