St. Paul's of course
St Pauls Cathedral and Westminster Cathedral (not to be confused with Westminster Abbey).
She married at Westminster Abbey.
There are many famous London churches including St Paul's Cathedral, Southwark Cathedral, Westminster RC Cathedral, Westminster Abbey, St Mary le Bow, St Martin in the Fields of Trafalgar Square, Methodist Central Hall, and many others.
Westminster Abbey opened 1090. St Paul's consecrated 1697
there are 4 Cathedrals in London Westminster cathedral Southwark Cathedral St. George Cathedral St. Paul's Cathedral
Tower of London, Buckingham Palace, St Pauls Cathedral, Westminster Abbey, Big Ben, Tower Bridge, Trafalgar Square. Just outside London is Hampton Court Palace and Windsor Castle.
Buckingham Palace, Tower of London, Tower Bridge, London Eye, Trafalgar Square, 10 Downing Street, Houses of Parliament, Big Ben, Westminster Abbey, British Museum, St Pauls Cathedral, National Gallery, Hyde Park, Greenwich.
St Pauls Cathedral
St Pauls's.
There are no current plans to rebuild St Pauls Cathedral in London, UK.
If you mean St Pauls Cathedral in London, it was Sir Christopher Wren.
If you mean tourist sites, they would include Buckingham Palace, London Eye, Big Ben, Trafalgar Square, Tower of London, Tower Bridge, Westminster Abbey, St Pauls Cathedral, Downing Street, Hyde Park, National Gallery, Tate Modern, HMS Belfast, Globe Theatre etc.