sentences:  The first foundations, at the east end, were dug in 1675.The ruins of the west portico of Inigo Jones, in its day a noted piece of architecture, were regretfully removed by Wren in 1688.The choir was finished for a celebratory service in 1697 (Queen Elizabeth came to another to mark its 400th anniversary in 1997); the dome was completed in 1708, and the cathedral declared finished in 1711.