Tsarevets Fortress reigned as the royal citadel of the Second Bulgarian Empire from 1185 to 1393.

Its walls, the Patriarchal Basilica and the fabled Baldwin’s Tower have witnessed coronations, sieges and intrigue - but never a dance floor.

That changes now: for the first time in recorded history, the monumental Tsar Ivan Square before the Lion Gate will close to everyday footsteps and open exclusively for a one-time large scale electronic music event.

Will you witness history as it is written?