Top 15 Mysterious Things Found During Construction sources
http://www.constructionjunkie.com/blog/2016/1/10/the-12-strangest-things-found-on-construction-sites-in-2015
http://wnep.com/2015/08/14/mass-grave-discovered-by-construction-worker/
http://www.constructionjunkie.com/blog/2017/1/15/the-12-strangest-things-found-on-construction-sites-in-2016
http://www.miamiherald.com/news/local/community/miami-dade/miami-beach/article56514733.html
http://www.femoran.com/6-strange-discoveries-found-during-construction-excavation-blog/
http://www.foxnews.com/science/2013/07/25/medieval-mansion-mysteriously-appears.html
https://www.livescience.com/29594-earths-most-mysterious-archeological-discoveries-.html
https://en.wikipedia.org/wiki/Terracotta_Army
https://blog.safetyculture.com/industry-trends/10-strangest-things-found-on-construction-sites
http://list25.com/25-crazy-things-found-in-a-backyard/3/
http://www.foxnews.com/tech/2011/05/02/officials-unearthed-treasure-includes-royal-bling.html
http://www.lifebuzz.com/house-findings/4/
http://www.nydailynews.com/news/world/guatemalan-family-finds-ancient-mayan-murals-kitchen-walls-home-renovation-article-1.1158640
http://www.ranker.com/list/strange-items-found-during-construction/daveesons
http://www.telegraph.co.uk/news/earth/wildlife/10196753/Walrus-remains-found-buried-under-St-Pancras-station-in-London.html
http://www.mccalebconstruction.com/2015/10/an-escaped-convicts-uniform-found-in-taranna-tasmania-australia/
http://www.build.com.au/16-amazing-things-found-during-renovations
http://www.telegraph.co.uk/news/newstopics/howaboutthat/5437664/Witch-bottle-containing-finger-nails-hair-and-pins-discovered.html
http://www.cracked.com/article_20311_the-5-most-wtf-things-found-while-working-old-house.html
http://www.nbcbayarea.com/news/local/Underground-Vaults-Bomb-Shelters-Delay-Soccer-Stadium-Opening-218172841.html
http://www.washingtonpost.com/wp-dyn/content/article/2006/07/22/AR2006072201158_2.html
http://news.nationalgeographic.com/news/2009/07/090728-headless-viking-execution-pit_2.html