Monas Monument - Jakarta, Indonesia

Built: 1961–1975 as Memorial for the Independence of Indonesia

Heigth: ca. 132 m

Building Material: Marble (Column), Bronze with a Gold Casting Alloy ("Flame of Independence")

Type of Soiling: Environmental Pollution (Smog/Exhaust)

Cleaning Equipment: HDS 750

Period of Cleaning: April 1992