The citadel of Amman has a special relevance because of what it tells us about urban and court life in the earliest times of Islam. A Spanish archaeological mission, working with Jordan's Department of Antiquities, has undertaken a project of documenting and conserving the monument. Their most important intervention has been the restoration of the entrance hall as a cultural centre, hosting exhibitions, concerts and conferences. To allow for this new use the hall's central dome was rebuilt - not as a stone replica of the original, but as a completely reversible modern element made of glulam timber joined with galvanised steel.
Source: Aga Khan Trust for Culture