The principal construction of the theatre building is the big dome, which is 60 metres (200 ft) wide and 35 metres (115 ft) high. The dome is a unique construction that supports itself without girders or columns. The ratio of its thickness (an average of 8 cm (3.1 in)) to its radius is less than that of a chicken's egg.
Theater with dome visible
In front of the dome there is a large foyer, while behind it there is a 30-metre (98 ft) deep stage with bars rising up to 30 metres (98 ft) above.