There is an inscription saying that it took 280 days
about 40 weeks
a long time
it take 2 days
It took 273 days for them to build the pyramid
It takes a long time...
it took 27years to build interstate 75.
7000000000000 CENTURIES
how long does it take to build a asimo
how long did it take to build the half moon
how long did it take to build the scottish parliment?
how long did it take to build cabot tower
The Great Pyramid was built in 10 years. This, however, is not an average time. Building time varied from pyramid to pyramid.
Seventy days.
hs2 will take 15 years to build
how long does it take to build a beam bridge of 2400 sq ft
it took 3 years
How long did it take to build st James cathedral london
a long time