The Tower of London is the most famous of all the historical buildings in London.
St Paul's Cathedral is the greatest work of England's greatest architector Christopher Wren. The cathedral was begun in 1675 . It was opened in 1697 but was finished only in 1710. There are memorials to many famous men of England in the Cathedral.
Trafalgar Square is in the centre of the West End of London. On the north side is the National Gallery; in the north-east corner is the National Portrait Gallery, and in the centre is Nelson's Column with the figure of the great seamen.
Trafalgar Square is the place where mass meetings and demonstrations for peace and for working people's rights take place.