Creating 40 audio- visual materials, each between 3 and 4 minutes long, HD format appropriate to be played on a computer. Each piece is voiced in 5 languages: Bulgarian, English, German, French and Russian. 

Developing a computer- based software for managing the audio- visual content – public interface which grants access to the various audio- visual materials.

46 audio-visual elements, each lasting 4 minutes, HD DVD format - presented on Internet and computer (KIOSKS). Each piece is voiced in 8 languages: Bulgarian, English, Spanish, Italian, German, French, Russian and Japanese.

Designing the structure of the public part of the management of the audio-visual facilities and the virtual tour guide.

Developing a computer- based software for managing the audio- visual content – public interface which grants access to the various audio- visual materials.

http://www.letnitsa.bg/virtual/front/index.html