Pylon
A <b><a href="http://en.wikipedia.org/wiki/Electricity_pylon" rel="noreferrer nofollow">transmission tower </a></b> (colloquially termed an electricity pylon in the United Kingdom and parts of Europe, an ironman in Australia, and a hydro tower in parts of Canada) is a tall structure, usually a steel lattice tower, used to support overhead electricity conductors for electric power transmission. They are used in high voltage AC and DC systems as well as railway traction, and come in a wide variety of shapes and sizes. Typical height ranges from 15 to 55 metres (49 to 180 ft), although heights in excess of 300 metres (980 ft) do exist. In addition to steel, other materials may be used, including concrete and wood.

Taken in the <a href="http://es.wikipedia.org/wiki/Pinar_del_Rey" rel="noreferrer nofollow">Pinar del Rey</a> park, San Roque, Cádiz, Spain.
electricity pylon torre de alta tensión electricidad electric eléctrico engineering ingeniería steel acero metal lattice celosía tower square triangle cuadrado triángulo shape forma cable urban pattern urbano shadow sombra pinar del rey pine forest san roque castellar la frontera campo gibraltar cadiz province provincia cádiz andalucía andalusia spain españa monochrome black white blanco negro monocromo gibmetal77 tyson lee holmes canon eos 450d symmetry simetría perspective perspectiva grid latticeclimbing towers