The amphitheater of Rome, the famous Colosseum, is a monument of exceptional size. Nowadays smaller than it was formerly, here are some figures below are its dimensions, but also on its history.
![The Colosseum](https://www.wonders-of-the-world.net/Colosseum/images/Vignettes/Photos/Colisee3-V.jpg)
The Colosseum
Its height
The Colosseum is ovoid, ie it is an ellipse with several centers. Its dimensions are:
Height: 50.75m
Lenght: 187.75m
Width: 155.60m
Circumference: 527m
Her inner arena is very large, she measures:
Lenght: 83m
Width: 48m
Its architectural elements
Number of floors: 4
Number of arcades per floor: 80, ie 240 arcades in total (The 4th floor has no arches)
Height of an arcade: 7.05m on the ground floor, 6.4m for the other two levels
Width of an arcade: 4.2m
Capacity: from 40 to 70,000 places
Slope of the stands: 30° down, 40° at the top
Number of fountains: 70
Number of support poles of the velum: 240
Its construction
Number of architects: 4 (unknown)
Foundations: 31m wide by 12m high, over 530m long
Its history
Start of construction: Between 70 and 72 AD
End of construction: 80 AD
End of use: 6th century