The shrine buildings at Ise, Shinto’s holiest site…

The shrine buildings at Ise, Shinto’s holiest site, are torn down & rebuilt every 20yrs in line with the belief in the impermanence of all things & as a way to pass building techniques across generations. The buildings have existed for ~1300yrs; the 63rd rebuilding occurs in 2033. 00

The Pentagon is 6.5M square ft (2X the Empire…

The Pentagon is 6.5M square ft (2X the Empire State Building) and is occupied by 23,000 people, making it the biggest office building in the world. Also, it was designed so that no point in the building is more than a 10 minutes walk from another point. Construction took just 16 months.