| 100% | SANCARLO | 8 | World's oldest opera house, Teatro di __, Naples |
| 55% | SAN | 3 | With 100-Across, Naples opera house Teatro di ___ |
| 39% | ALLASCALA | 9 | Milan opera house, Teatro __ |
| 36% | SYD | 3 | ___ Opera House (Australian world heritage site): Abbr. |
| 35% | LASCALA | 7 | Milan opera house severely damaged during World War II |
| 34% | LASCALA | 7 | Milan opera house severely damaged during the Second World War |
| 33% | WIMBLEDON | 9 | World's oldest tennis tournament |
| 33% | BRITISHOPEN | 11 | World's oldest golf tournament |
| 33% | MEAD | 4 | World's oldest alcoholic beverage |
| 33% | DAMASCUS | 8 | World's oldest capital city |
| 33% | BBC | 3 | World's oldest natl. channel |
| 32% | EISINGA | 7 | World's oldest still-existing planetarium |
| 32% | BRITISPEN | 9 | World's oldest golf tournament, familiarly |
| 31% | TEENAGER | 8 | World's Oldest ___ (nickname for 63-Across) |
| 31% | POUNDSTERLING | 13 | World's oldest currency still in use |
| 31% | SYDNEY | 6 | __ Opera House, Utzon's "sailing" auditorium |
| 31% | ELIZABETH | 9 | World's oldest reigning monarch until 2022, __ II |
| 31% | BINNENHOF | 9 | World's oldest parliamentary building in The Hague |
| 31% | ASHMOLEAN | 9 | World's oldest public museum, at Oxford University |
| 31% | SCALA | 5 | Teatro alla __: Milan opera house |
| 31% | SCALA | 5 | Milan's La ___ opera house |
| 31% | SCALA | 5 | Milan's La __ opera house |
| 31% | SYDNEY | 6 | Australia's famous opera house |
| 30% | BBC | 3 | World's oldest broadcaster based out of London: Abbr. |
| 29% | LASCALA | 7 | Milan's famous opera house, founded 1778 |
| 29% | SCALA | 5 | La __, Milan's famous opera house |
| 29% | SYDNEY | 6 | Australia's Opera House city |
| 29% | ALE | 3 | McSorley's Old ___ House (Manhattan institution) |
| 29% | COVENT | 6 | London's Royal Opera House is in __ Garden |
| 29% | WIMBLEDON | 9 | The world's oldest tennis tournament, since 1877 |