The silver and blue glass dome that tops the roundabout was built in 2006. It was built on the steel arch-shaped construction. It is covered with the blue and grey glass and silver metal sheet. The three-storeyed building with an observation deck and balcony is lit by the 115 diode lamps. Their colour depends on the temperature and the season.

 

The measurements of the dome:

– height – 14 meters,

– total area – 12 000 m^2,

– cubic capacity –  6000 m^3.

 

Inside the building there are:

– bookstore,

– the Academy of Fine Arts’ Gallery,

– bar.

 

The dome was designed by the Academy of Fine Arts in Katowice.