http://www.cracked.com/article_19958_6-mind-blowing-things-people-built-in-their-backyard.html
http://nerdist.com/crazy-british-inventor-builds-an-apocalypse-bunker-in-his-backyard/
http://www.financetwitter.com/2015/05/awesome-backyard-inventions-from-china-that-rock.html
http://www.popularmechanics.com/home/outdoor-projects/a18223/colin-furze-apocaylpse-bunker-interior/
https://en.wikipedia.org/wiki/Bomb_shelter
http://www.nytimes.com/2010/07/15/garden/15dentist.html
http://www.dailymail.co.uk/news/article-2181375/Hell-Paris-French-artist-shows-passion-city-love-creating-huge-model-garden.html
https://en.wikipedia.org/wiki/Bishop_Castle
http://www.bishopcastle.org/plan-your-visit/
http://www.roadsideamerica.com/story/29694
http://www.desertdispatch.com/article/20110102/NEWS/301029997
http://belarusfeed.com/handmade-tank-man-builds-full-size-replica-of-wwii-battle-vehicle-in-his-backyard-photos-video/
http://boingboing.net/2012/03/26/howto-build-a-robotic-squirrel.html?utm_source=feedburner
https://www.facebook.com/roryaronson/about?lst=607541084%3A1358480642%3A1496743300
https://en.wikipedia.org/wiki/FarmBot
http://www.odditycentral.com/news/kansas-man-builds-golden-gate-bridge-replica-in-his-backyard.html