The Tour of the FCO shows a selection of the restored areas of the building designed as 'a kind of national palace or drawing room for the nation'.
Read about the historical background of the FCO buildings, including a chronology and tour of a special set of murals by Sigismund Goetze.
The Overseas Estate pages showcase some of the new FCO buildings abroad, which incorporate stunning architecture and present a modern face of the UK.
The Lancaster House pages give a guided tour of a house which has 'entertained more heads of state, politicians and celebrities than any other in London'.
Foreign Secretaries in History provides a list of Foreign Secretaries from 1782 to the present day.
The FCO Historians publish History Notes and other historical texts on these pages.