| GREENWICH | London borough: site of the original Royal Observatory (9) |
| ORANGE | Old storm engulfing 23's original royal house |
| CROYDON | Outer London borough, site of former London airport |
| BARNET | London borough, site of 1471 battle |
| ANDROMEDA | With heads of Royal Observatory, made out constellation |
| OLYMPIA | In 1766, antiquarian Richard Chandler published his book Travels in Greece and brought this site to public attention. It was the site of the original "games." What is name of this site? |
| MEANTIME | Greenwich - -; the annual average of hours, minutes and seconds when the sun crosses the prime meridian at the Royal Observatory (4,4) |
| OLDSARUM | Site of the original settlement of Salisbury (3,5) |
| OCTAGON | Eight-sided shape of the room designed by Christopher Wren in the Royal Observatory (Flamsteed House) to observe the night sky (7) |
| ATTICA | Site of the original marathon route |
| HALICARNASSUS | Ancient Greek city, site of the original mausoleum |
| ANAHEIM | Site of the original Disneyland (7) |
| WREN | Architect of the Royal Observatory in Greenwich |
| GMT | Std. measured at the Royal Observatory in London |
| HERSTMONCEUX | East Sussex castle where the Royal Observatory was housed from 1957 to 1988 (12) |
| YARD | A standard shown on a Royal Observatory wall |
| NUMBERONE | The official residence of the vice president of the United States, _ _ Observatory Circle (6,3) |
| ISLEOFMAY | Site of Scotland's oldest bird observatory ... mayflies moved around start of October! (4,2,3) |
| OLINGUITO | Pair of observatory leaders carrying terrible guilt in recently-discovered mammal (9) |
| DUNGENESS | Shingle headland in Kent known for its lighthouse and bird observatory (9) |
