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BT Tower is a communications tower located in Camden, London, United Kingdom owned by BT Group. It has been previously known as the Post Office Tower, the London Telecom Tower and the British Telecom Tower. The main structure is 177 metres (581 ft) tall, with a further section of aerial rigging bringing the total height to 189 metres (620 ft)

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from Sploid

Insane tower design launches people on an awesome roller coaster loop

”This 328-foot (100-meter) structure wasn't the winner of the Çanakkale Antenna contest, a communications tower that will be built in Çanakkale, Turkey. This makes me sad because it looks like a lot more fun to me, even if those glass pods wouldn't move through that loop at roller coaster speeds.”

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Communications tower by Santiago Calatrava and Palau Sant Jordi sports arena by Arata Isozaki, Montjuich Olympic area Barcelona Catalonia

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The Montjuïc Communications Tower, popularly known as Torre Calatrava and Torre Telefónica, is a telecommunication tower in the Montjuïc neighborhood of Barcelona, Catalonia, Spain.

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Santiago Calatrava's Montjuic Communications Tower, Barcelona http://2.bp.blogspot.com/-wHhHWi9aFko/T1pyPQIIKlI/AAAAAAAAAVU/gVccOrS_PrQ/s1600/santiago-calatrava-communications-tower-l.jpg

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