Videos and websites on buildings and structures

http://www.worldtour360.com/360.php?country=Canada&swf=MontrealVieuxPort20170706&lang=en (world tour 360 degree)

https://www.youtube.com/watch?v=1N1JGGfti0A  

(housing in cold climate)

https://www.youtube.com/watch?v=BFp3y0KIaqk       (cold climate building techniques)

http://www.appropedia.org/Building_a_flood_resistant_house    

(flood prone areas-design of houses)

https://www.youtube.com/watch?v=gjBMivA3z4k  (village in Rajasthan- economy of the place is evident)

https://www.youtube.com/watch?v=hhHk9jSL5FE  (mud hut for camels in salt desert)

https://www.houzz.com/ideabooks/21279811/list/15-smart-design-choices-for-cold-climates

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https://www.investopedia.com/articles/investing/022415/worlds-top-10-economies.asp

(best economies of the world)

https://www.thebalance.com/economy-definition-2085358     (what is an economy?)

https://www.khanacademy.org/economics-finance-domain/macroeconomics/gdp-topic/v/introduction-to-economics       (GDP)
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https://www.youtube.com/watch?v=dyxL_BvkhJg   (cement manufacturing)

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https://www.youtube.com/watch?v=oVOnRPefcno  (what makes bridges strong?)

https://www.youtube.com/watch?v=N_DLcS1BVc4     (experiment of tension and compression on bridges)

https://www.youtube.com/watch?v=c-V_8_qmJbE&list=PLNNCbmHKSMN-rwF08cA2ek-55kR9yh_Vj   (tension and compression on bridges)

https://www.youtube.com/watch?v=EYRYtTMcYZM   (Types of bridges, forces)
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https://goal.aminoapps.com/page/blog/stadiums-bundesligavspremierleague/2v1I_NuxQ1EbY17Vg285Z0dY158D2Wa     (stadiums around the world)

http://www.skyscrapercity.com/showthread.php?t=1727660       (bridges around the world)

https://worldamazingpictures.wordpress.com/author/worldamazingpictures/page/12/      (under sea restaurant)