siena river and castle conciergerie.former royal palace and prison. conciergerie located on the west of the cite island

architecture attraction au beautiful bridge building castle cathedral catholic change church cite city cityscape conciergerie conciergerieformer culture dame de england europe european famous fire france french gothic historic history important island justice landmark landscape located london medieval michel notre old palace palais paris pont prison river riverside royal saint scene seine siena sky tour tourism tourists tower travel urban view water west