The Paris catacombs began as Roman quarry tunnels around 60 BCE. Around 1785, the government began converting 350 of these underground quarries into mass graves, because of desperate overcrowding in the medieval cemeteries in the centre of Paris.
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.
about four years
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
Approx 35 minutes
456
from where?
How long dose it take to get from Charles De Gaulle Airport to disneyland Paris?
hs2 will take 15 years to build
how long does it take to build a beam bridge of 2400 sq ft
Depending on traffic, from 30mins to 1hr30