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Large office buildings are often as big as small towns. They have their own trains, buses and shops. Such buildings can be found in most cities of the world. When it was finished, however, in 1943, the Pentagon was the world’s largest office building. It is still – many years later – among the largest.
Built in the shape of a pentagon – a 1 _______ shape – the building consists of five pentagons, divided into ten sections. Each side of the 2 _______ pentagon is about 300 metres long. In the centre, there is a large space open to the sky.
Six storeys high, the Pentagon has a 3 _______ floor space of about two million square metres. Around it, there are about 45 kilometres of roads that are part of the building and inside the building itself there are over 25 kilometres of passages. In spite of its great 4 _______, however, no office is more than a six minute walk from any other office in the building.