| ERIECANAL | Waterway whose construction began in Rome |
| CESARPELLI | Argentine-born architect whose works include One Canada Square in Canary Wharf, on which construction began in 1988 (5,5) |
| PISA | City whose tower's construction began in 1173 |
| AMPHIBOLOGY | Phrase or sentence whose construction permits multiple interpretations, as in I caught an intruder in my pyjamas (11) |
| HERSCHEL | Composer whose construction of a telescope led to his discovery of Uranus in 1781 and subsequent appointment as court astronomer to George III the following year (8) |
| NOTREDAME | European medieval catholic cathedral completed in 1345, 180 years after construction began (5,4) |
| CNTOWER | Standout tourist destination in the T.O. skyline ...construction began February 6, 1973 and was completed April 2, 1975: Two words. |
| PANAMACANAL | Its construction began 1/1/1880 |
| BERLINWALL | Structure built in 1961 whose demolition began in 1989 |
| LLOYDS | Association of London underwriters that began in a coffee house in Tower Street in the late 17th cen |
| IRONAGE | It began in 1200BC in Europe |
| LIBYAN | No anger curtailed in revolution such as began in Benghazi |
| DUBLIN | U2 began in a high school in this town |
| SEPTEMBER | The Second World War began in this month in 1939 |
| VICTORIA | British monarch whose reign began in 1837 (8) |
| STUART | Royal house that began in England in 1603 (6) |
| ORA | Rita ___ (singer whose Phoenix World Tour began in 2019) |
| TUNISIA | Country in which the Arab Spring began in 2010 |
| BINGCROSBY | Legendary crooning singer whose career began in the late 1920's: 2 wds. |
| INDUSTRIAL | Period of technological advancement that began in England in the late 18th century, the ... Revoluti |