IR Euromast

Euromast is a tower in Rotterdam constructed between 1958 and 1960, designed H.A. Maaskant. It was specially built for the 1960 Floriade. It is a concrete building with an internal diameter of 9m and a wall thickness of 30cm. For stability is it built on a concrete block of 1,900,000 kg so that the centre of gravity is below ground. It has a "crow's nest" observation platform 96 metres above-ground and a restaurant. Originally 101 metres in height it was the tallest building in Rotterdam. It lost this position for a while, but regained it when the "Space Tower" was added to the top of the building in 1970, giving an additional 85 metres.