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 | The Colosseum was built in 70 - 80 AD. It was the largest amphitheatre built at the time and held 50 000 spectators. | |
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| The Eiffel Tower was built between 1887 and 1889. It is one of the most recognisable structures in the world. | |
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| The earliest known pyramid was built in 26302610 BC. These pyramids are found in Saqqara, northwest of Memphis. | |
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