The idea for the show dates back to the early 60s of the last century when the National Development Committee of Veliko Tarnovo plans on developing the old capital as a historical, cultural and tourist center. 630 km cable network, 2 400 color lasers, 140 lightnings and 6 real beating bells, whose weight varies from 600 kg to 6 tons, are included in a special computer - controlled system in order to present this unique attraction. The funds invested in the creating of the audio-visual show are over 10 million leva.