| Answer | Crossword Clue |
|---|---|
| TIBER | River under the Pons Aemilius |
| ARNO | River under the Ponte Vecchio |
| EAST | River under the Brooklyn Bridge |
| NIAGARA | River under the Peace Bridge |
| ORINOCO | River under the Angostura Bridge |
| EAST | River under the Brooklyn Bridge. |
| TIBER | River under the Ponte Sisto |
| ARNO | River under the Ponte Santa Trinita |
| bottoms | The ground under a sea, river, or lake |
| DAYLIGHT | 1996 Sylvester Stallone disaster movie set in a tunnel under the Hudson River |
