Phoenix Copper Smelter

The Cuprom Phoenix Copper Smelter is a smelter of sulfurous copper ores in Baia Mare, Romania. It has a 351.5 m chimney.

Construction began in 1993, finished in 1995, making it the tallest artificial structure in Romania and the third tallest chimney in Europe. The base of the tower has a diameter of 20 m while the top has a diameter of 9 m.

Due to the acid rain caused by it, and the fact that Baia Mare became the third largest polluted city in Romania, following only Bucharest and Galați, the chimney is no longer in use and became a tourist attraction. In 2022, a €65 million rehabilitation project of the facilities was announced. The old copper plant will be replaced by a photovoltaic park, while the tower will be set up for tourist purposes, and will be equipped with three elevators, two internal and one external, made of glass, with an observation platform mounted at the top.