Aghia Sophia Cathedral is the oldest Greek Orthodox place of worship in London. Located on Moscow Road in Bayswater. https://t.co/O0EpCS3vYZ The Greek Orthodox Cathedral of the Divine Wisdom, Aghia Sophia's The activities of the charity are focussed on the preservation of the Greek Cathedral in London W2. Church services and the operation of the Cathedral are carried out by 4 employed staff.