There are eight.
365
340 Arches in total
Waterloo bridge has 5 arches.
Over 2000.
340 arches are in the colosseum that's almost 80 arches on each floor!
It has 167 arches in total.
There are many large sandstone arches.
16 arches
There are more than 2,000 natural sandstone arches in Arches National Park.
aortic arches is another term for heart, and an earthworm has 5.
The Coliseum in Rome has 80 entrance arches,and 6base arches.
They got there names from the landforms within them. For example, Arches National Park is made up of many sandstone arches.