4Constructed with marble

The ancient Romans used a lot of marble to construct the Colosseum.

It has been estimated that they used around 100,000 cubic meters of marble, transported in 200 bullock carts to the building site. They also used 1.1 million tons of concrete, stone and brick. To build the Colosseum today, it would cost around 39 million euros – the equivalent of almost 43 million dollars!

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