Possible Dream Meaning
To see a castle, fortress or an official building like white house in your dream is related to the supreme authority in that metropolitan area, city or state. To see in dream that arches of a fortress or official building have been fortified and taller than normal then it denotes that supreme authority is destined to a more powerful position but will be on righteous track.
To see in dream that arches of a fortress or office have fallen then it may be a precursor that some powerful person is going to depart soon. To see in dream that arches of a fortress or official building are being reconstructed or renovated then it may be a sign of replacement of supreme authority with the newcomer one.