Matt Novak:
While researching a column I wrote recently for BBC Future about fighting the skyscraper fires of tomorrow I came across a fascinating anti-skyscraper law from 1912 that would have a lasting impact on Australia’s largest city. Fearing that fighting fires was nearly impossible in tall buildings, Sydney passed the Height of Buildings Act of 1912, limiting new buildings to just 150 feet tall. As a result Sydney spent almost half a century growing predominantly outward rather than skyward.