The Indosiar Television Tower is a 395 m (1,300 ft) guyed mast used for FM- and TV-broadcasting in West Jakarta Indonesia, completed in 2006.

It is currently the tallest structure in Indonesia and the 8th tallest building in the world. It consists of a 375 metre tall lattice structure with a side length of 6.3 m (20.7 ft), which carries on its top a 20 m (65.6 ft) high TV-broadcasting antena.

The upper parts of the mast are guyed to a 120 m (390 ft) triangular lattice steel structure with a side length of 56 m (183.7 ft), which was built around the mast. This special design, which gives the tower a unique shape, was chosen because of the lack of space available on the site. Broadcasting is run by the local television station, Indosiar.

Source http://www.wikipedia.org